diff --git a/test/run.js b/test/run.js
index 282b13325f..8b23031048 100644
--- a/test/run.js
+++ b/test/run.js
@@ -1,5 +1,6 @@
 var driver = require("./driver.js");
 require("./tests.js");
+require("./tests-harmony.js");
 
 var testsRun = 0, failed = 0;
 function report(state, code, message) {
diff --git a/test/tests-harmony.js b/test/tests-harmony.js
new file mode 100644
index 0000000000..06ca3aecdc
--- /dev/null
+++ b/test/tests-harmony.js
@@ -0,0 +1,15336 @@
+/*
+  Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
+  Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
+  Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
+  Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
+  Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
+  Copyright (C) 2011 Yusuke Suzuki <utatane.tea@gmail.com>
+  Copyright (C) 2011 Arpad Borsos <arpad.borsos@googlemail.com>
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+if (typeof exports != "undefined") {
+  var test = require("./driver.js").test;
+  var testFail = require("./driver.js").testFail;
+  var testAssert = require("./driver.js").testAssert;
+}
+
+/*
+  Tests below are automatically converted from https://github.com/ariya/esprima/blob/2bb17ef9a45c88e82d72c2c61b7b7af93caef028/test/harmonytest.js.
+*/
+
+// ES6 Unicode Code Point Escape Sequence
+
+test("\"\\u{714E}\\u{8336}\"", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: "煎茶",
+      raw: "\"\\u{714E}\\u{8336}\"",
+      range: [0, 18],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 18}
+      }
+    },
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("\"\\u{20BB7}\\u{91CE}\\u{5BB6}\"", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: "𠮷野家",
+      raw: "\"\\u{20BB7}\\u{91CE}\\u{5BB6}\"",
+      range: [0, 27],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 27}
+      }
+    },
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+// ES6: Numeric Literal
+
+test("00", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 0,
+      raw: "00",
+      range: [0, 2],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 2}
+      }
+    },
+    range: [0, 2],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 2}
+    }
+  }],
+  range: [0, 2],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 2}
+  }
+}, {ecmaVersion: 6});
+
+test("0o0", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 0,
+      raw: "0o0",
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("function test() {'use strict'; 0o0; }", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "test",
+      range: [9, 13],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 13}
+      }
+    },
+    params: [],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [
+        {
+          type: "ExpressionStatement",
+          expression: {
+            type: "Literal",
+            value: "use strict",
+            raw: "'use strict'",
+            range: [17, 29],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 29}
+            }
+          },
+          range: [17, 30],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 30}
+          }
+        },
+        {
+          type: "ExpressionStatement",
+          expression: {
+            type: "Literal",
+            value: 0,
+            raw: "0o0",
+            range: [31, 34],
+            loc: {
+              start: {line: 1, column: 31},
+              end: {line: 1, column: 34}
+            }
+          },
+          range: [31, 35],
+          loc: {
+            start: {line: 1, column: 31},
+            end: {line: 1, column: 35}
+          }
+        }
+      ],
+      range: [16, 37],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 37}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 37],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 37}
+    }
+  }],
+  range: [0, 37],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 37}
+  }
+}, {ecmaVersion: 6});
+
+test("0o2", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 2,
+      raw: "0o2",
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("0o12", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 10,
+      raw: "0o12",
+      range: [0, 4],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 4}
+      }
+    },
+    range: [0, 4],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 4}
+    }
+  }],
+  range: [0, 4],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 4}
+  }
+}, {ecmaVersion: 6});
+
+test("0O0", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 0,
+      raw: "0O0",
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("function test() {'use strict'; 0O0; }", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "test",
+      range: [9, 13],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 13}
+      }
+    },
+    params: [],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [
+        {
+          type: "ExpressionStatement",
+          expression: {
+            type: "Literal",
+            value: "use strict",
+            raw: "'use strict'",
+            range: [17, 29],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 29}
+            }
+          },
+          range: [17, 30],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 30}
+          }
+        },
+        {
+          type: "ExpressionStatement",
+          expression: {
+            type: "Literal",
+            value: 0,
+            raw: "0O0",
+            range: [31, 34],
+            loc: {
+              start: {line: 1, column: 31},
+              end: {line: 1, column: 34}
+            }
+          },
+          range: [31, 35],
+          loc: {
+            start: {line: 1, column: 31},
+            end: {line: 1, column: 35}
+          }
+        }
+      ],
+      range: [16, 37],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 37}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 37],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 37}
+    }
+  }],
+  range: [0, 37],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 37}
+  }
+}, {ecmaVersion: 6});
+
+test("0O2", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 2,
+      raw: "0O2",
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("0O12", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 10,
+      raw: "0O12",
+      range: [0, 4],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 4}
+      }
+    },
+    range: [0, 4],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 4}
+    }
+  }],
+  range: [0, 4],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 4}
+  }
+}, {ecmaVersion: 6});
+
+test("0b0", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 0,
+      raw: "0b0",
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("0b1", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 1,
+      raw: "0b1",
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("0b10", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 2,
+      raw: "0b10",
+      range: [0, 4],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 4}
+      }
+    },
+    range: [0, 4],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 4}
+    }
+  }],
+  range: [0, 4],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 4}
+  }
+}, {ecmaVersion: 6});
+
+test("0B0", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 0,
+      raw: "0B0",
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("0B1", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 1,
+      raw: "0B1",
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("0B10", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "Literal",
+      value: 2,
+      raw: "0B10",
+      range: [0, 4],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 4}
+      }
+    },
+    range: [0, 4],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 4}
+    }
+  }],
+  range: [0, 4],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 4}
+  }
+}, {ecmaVersion: 6});
+
+// ES6 Template Strings
+
+test("`42`", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "TemplateLiteral",
+      quasis: [{
+        type: "TemplateElement",
+        value: {raw: "42", cooked: "42"},
+        tail: true,
+        range: [0, 4],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 4}
+        }
+      }],
+      expressions: [],
+      range: [0, 4],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 4}
+      }
+    },
+    range: [0, 4],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 4}
+    }
+  }],
+  range: [0, 4],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 4}
+  }
+}, {ecmaVersion: 6});
+
+test("raw`42`", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "TaggedTemplateExpression",
+      tag: {
+        type: "Identifier",
+        name: "raw",
+        range: [0, 3],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 3}
+        }
+      },
+      quasi: {
+        type: "TemplateLiteral",
+        quasis: [{
+          type: "TemplateElement",
+          value: {raw: "42", cooked: "42"},
+          tail: true,
+          range: [3, 7],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 7}
+          }
+        }],
+        expressions: [],
+        range: [3, 7],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 7}
+        }
+      },
+      range: [0, 7],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 7}
+      }
+    },
+    range: [0, 7],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 7}
+    }
+  }],
+  range: [0, 7],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 7}
+  }
+}, {ecmaVersion: 6});
+
+test("raw`hello ${name}`", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "TaggedTemplateExpression",
+      tag: {
+        type: "Identifier",
+        name: "raw",
+        range: [0, 3],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 3}
+        }
+      },
+      quasi: {
+        type: "TemplateLiteral",
+        quasis: [
+          {
+            type: "TemplateElement",
+            value: {raw: "hello ", cooked: "hello "},
+            tail: false,
+            range: [3, 12],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 12}
+            }
+          },
+          {
+            type: "TemplateElement",
+            value: {raw: "", cooked: ""},
+            tail: true,
+            range: [16, 18],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 18}
+            }
+          }
+        ],
+        expressions: [{
+          type: "Identifier",
+          name: "name",
+          range: [12, 16],
+          loc: {
+            start: {line: 1, column: 12},
+            end: {line: 1, column: 16}
+          }
+        }],
+        range: [3, 18],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 18}
+        }
+      },
+      range: [0, 18],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 18}
+      }
+    },
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("`$`", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "TemplateLiteral",
+      quasis: [{
+        type: "TemplateElement",
+        value: {raw: "$", cooked: "$"},
+        tail: true,
+        range: [0, 3],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 3}
+        }
+      }],
+      expressions: [],
+      range: [0, 3],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 3}
+      }
+    },
+    range: [0, 3],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 3}
+    }
+  }],
+  range: [0, 3],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 3}
+  }
+}, {ecmaVersion: 6});
+
+test("`\\n\\r\\b\\v\\t\\f\\\n\\\r\n`", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "TemplateLiteral",
+      quasis: [{
+        type: "TemplateElement",
+        value: {raw: "\\n\\r\\b\\v\\t\\f\\\n\\\r\n", cooked: "\n\r\b\u000b\t\f"},
+        tail: true,
+        range: [0, 19],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 3, column: 19}
+        }
+      }],
+      expressions: [],
+      range: [0, 19],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 3, column: 19}
+      }
+    },
+    range: [0, 19],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 3, column: 19}
+    }
+  }],
+  range: [0, 19],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 3, column: 19}
+  }
+}, {ecmaVersion: 6});
+
+test("`\n\r\n`", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "TemplateLiteral",
+      quasis: [{
+        type: "TemplateElement",
+        value: {raw: "\n\r\n", cooked: "\n\n"},
+        tail: true,
+        range: [0, 5],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 3, column: 5}
+        }
+      }],
+      expressions: [],
+      range: [0, 5],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 3, column: 5}
+      }
+    },
+    range: [0, 5],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 3, column: 5}
+    }
+  }],
+  range: [0, 5],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 3, column: 5}
+  }
+}, {ecmaVersion: 6});
+
+test("`\\u{000042}\\u0042\\x42\\u0\\102\\A`", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "TemplateLiteral",
+      quasis: [{
+        type: "TemplateElement",
+        value: {raw: "\\u{000042}\\u0042\\x42\\u0\\102\\A", cooked: "BBBu0BA"},
+        tail: true,
+        range: [0, 31],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 31}
+        }
+      }],
+      expressions: [],
+      range: [0, 31],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 31}
+      }
+    },
+    range: [0, 31],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 31}
+    }
+  }],
+  range: [0, 31],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 31}
+  }
+}, {ecmaVersion: 6});
+
+test("new raw`42`", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "NewExpression",
+      callee: {
+        type: "TaggedTemplateExpression",
+        tag: {
+          type: "Identifier",
+          name: "raw",
+          range: [4, 7],
+          loc: {
+            start: {line: 1, column: 4},
+            end: {line: 1, column: 7}
+          }
+        },
+        quasi: {
+          type: "TemplateLiteral",
+          quasis: [{
+            type: "TemplateElement",
+            value: {raw: "42", cooked: "42"},
+            tail: true,
+            range: [7, 11],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 11}
+            }
+          }],
+          expressions: [],
+          range: [7, 11],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 11}
+          }
+        },
+        range: [4, 11],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 11}
+        }
+      },
+      arguments: [],
+      range: [0, 11],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 11}
+      }
+    },
+    range: [0, 11],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 11}
+    }
+  }],
+  range: [0, 11],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 11}
+  }
+}, {ecmaVersion: 6});
+
+// ES6: Switch Case Declaration
+
+test("switch (answer) { case 42: let t = 42; break; }", {
+  type: "Program",
+  body: [{
+    type: "SwitchStatement",
+    discriminant: {
+      type: "Identifier",
+      name: "answer",
+      range: [8, 14],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 14}
+      }
+    },
+    cases: [{
+      type: "SwitchCase",
+      test: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [23, 25],
+        loc: {
+          start: {line: 1, column: 23},
+          end: {line: 1, column: 25}
+        }
+      },
+      consequent: [
+        {
+          type: "VariableDeclaration",
+          declarations: [{
+            type: "VariableDeclarator",
+            id: {
+              type: "Identifier",
+              name: "t",
+              range: [31, 32],
+              loc: {
+                start: {line: 1, column: 31},
+                end: {line: 1, column: 32}
+              }
+            },
+            init: {
+              type: "Literal",
+              value: 42,
+              raw: "42",
+              range: [35, 37],
+              loc: {
+                start: {line: 1, column: 35},
+                end: {line: 1, column: 37}
+              }
+            },
+            range: [31, 37],
+            loc: {
+              start: {line: 1, column: 31},
+              end: {line: 1, column: 37}
+            }
+          }],
+          kind: "let",
+          range: [27, 38],
+          loc: {
+            start: {line: 1, column: 27},
+            end: {line: 1, column: 38}
+          }
+        },
+        {
+          type: "BreakStatement",
+          label: null,
+          range: [39, 45],
+          loc: {
+            start: {line: 1, column: 39},
+            end: {line: 1, column: 45}
+          }
+        }
+      ],
+      range: [18, 45],
+      loc: {
+        start: {line: 1, column: 18},
+        end: {line: 1, column: 45}
+      }
+    }],
+    range: [0, 47],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 47}
+    }
+  }],
+  range: [0, 47],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 47}
+  }
+}, {ecmaVersion: 6});
+
+// ES6: Arrow Function
+
+test("() => \"test\"", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: "test",
+        raw: "\"test\"",
+        range: [6, 12],
+        loc: {
+          start: {line: 1, column: 6},
+          end: {line: 1, column: 12}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 12],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 12}
+      }
+    },
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("e => \"test\"", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "e",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: "test",
+        raw: "\"test\"",
+        range: [5, 11],
+        loc: {
+          start: {line: 1, column: 5},
+          end: {line: 1, column: 11}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 11],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 11}
+      }
+    },
+    range: [0, 11],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 11}
+    }
+  }],
+  range: [0, 11],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 11}
+  }
+}, {ecmaVersion: 6});
+
+test("(e) => \"test\"", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "e",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: "test",
+        raw: "\"test\"",
+        range: [7, 13],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 13}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 13],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 13}
+      }
+    },
+    range: [0, 13],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 13}
+    }
+  }],
+  range: [0, 13],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 13}
+  }
+}, {ecmaVersion: 6});
+
+test("(a, b) => \"test\"", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [
+        {
+          type: "Identifier",
+          name: "a",
+          range: [1, 2],
+          loc: {
+            start: {line: 1, column: 1},
+            end: {line: 1, column: 2}
+          }
+        },
+        {
+          type: "Identifier",
+          name: "b",
+          range: [4, 5],
+          loc: {
+            start: {line: 1, column: 4},
+            end: {line: 1, column: 5}
+          }
+        }
+      ],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: "test",
+        raw: "\"test\"",
+        range: [10, 16],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 16}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 16],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 16}
+      }
+    },
+    range: [0, 16],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 16}
+    }
+  }],
+  range: [0, 16],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 16}
+  }
+}, {ecmaVersion: 6});
+
+test("e => { 42; }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "e",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [{
+          type: "ExpressionStatement",
+          expression: {
+            type: "Literal",
+            value: 42,
+            raw: "42",
+            range: [7, 9],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 9}
+            }
+          },
+          range: [7, 10],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 10}
+          }
+        }],
+        range: [5, 12],
+        loc: {
+          start: {line: 1, column: 5},
+          end: {line: 1, column: 12}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [0, 12],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 12}
+      }
+    },
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("e => ({ property: 42 })", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "e",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "property",
+            range: [8, 16],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 16}
+            }
+          },
+          value: {
+            type: "Literal",
+            value: 42,
+            raw: "42",
+            range: [18, 20],
+            loc: {
+              start: {line: 1, column: 18},
+              end: {line: 1, column: 20}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [8, 20],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 20}
+          }
+        }],
+        range: [6, 22],
+        loc: {
+          start: {line: 1, column: 6},
+          end: {line: 1, column: 22}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 23],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 23}
+      }
+    },
+    range: [0, 23],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 23}
+    }
+  }],
+  range: [0, 23],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 23}
+  }
+}, {ecmaVersion: 6});
+
+test("e => { label: 42 }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "e",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [{
+          type: "LabeledStatement",
+          label: {
+            type: "Identifier",
+            name: "label",
+            range: [7, 12],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 12}
+            }
+          },
+          body: {
+            type: "ExpressionStatement",
+            expression: {
+              type: "Literal",
+              value: 42,
+              raw: "42",
+              range: [14, 16],
+              loc: {
+                start: {line: 1, column: 14},
+                end: {line: 1, column: 16}
+              }
+            },
+            range: [14, 17],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 17}
+            }
+          },
+          range: [7, 17],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 17}
+          }
+        }],
+        range: [5, 18],
+        loc: {
+          start: {line: 1, column: 5},
+          end: {line: 1, column: 18}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [0, 18],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 18}
+      }
+    },
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("(a, b) => { 42; }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [
+        {
+          type: "Identifier",
+          name: "a",
+          range: [1, 2],
+          loc: {
+            start: {line: 1, column: 1},
+            end: {line: 1, column: 2}
+          }
+        },
+        {
+          type: "Identifier",
+          name: "b",
+          range: [4, 5],
+          loc: {
+            start: {line: 1, column: 4},
+            end: {line: 1, column: 5}
+          }
+        }
+      ],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [{
+          type: "ExpressionStatement",
+          expression: {
+            type: "Literal",
+            value: 42,
+            raw: "42",
+            range: [12, 14],
+            loc: {
+              start: {line: 1, column: 12},
+              end: {line: 1, column: 14}
+            }
+          },
+          range: [12, 15],
+          loc: {
+            start: {line: 1, column: 12},
+            end: {line: 1, column: 15}
+          }
+        }],
+        range: [10, 17],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 17}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("([a, , b]) => 42", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [2, 3],
+            loc: {
+              start: {line: 1, column: 2},
+              end: {line: 1, column: 3}
+            }
+          },
+          null,
+          {
+            type: "Identifier",
+            name: "b",
+            range: [7, 8],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 8}
+            }
+          }
+        ],
+        range: [1, 9],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 9}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [14, 16],
+        loc: {
+          start: {line: 1, column: 14},
+          end: {line: 1, column: 16}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 16],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 16}
+      }
+    },
+    range: [0, 16],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 16}
+    }
+  }],
+  range: [0, 16],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 16}
+  }
+}, {ecmaVersion: 6});
+
+test("([a.a]) => 42", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "ArrayPattern",
+        elements: [{
+          type: "MemberExpression",
+          computed: false,
+          object: {
+            type: "Identifier",
+            name: "a",
+            range: [2, 3],
+            loc: {
+              start: {line: 1, column: 2},
+              end: {line: 1, column: 3}
+            }
+          },
+          property: {
+            type: "Identifier",
+            name: "a",
+            range: [4, 5],
+            loc: {
+              start: {line: 1, column: 4},
+              end: {line: 1, column: 5}
+            }
+          },
+          range: [2, 5],
+          loc: {
+            start: {line: 1, column: 2},
+            end: {line: 1, column: 5}
+          }
+        }],
+        range: [1, 6],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 6}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [11, 13],
+        loc: {
+          start: {line: 1, column: 11},
+          end: {line: 1, column: 13}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 13],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 13}
+      }
+    },
+    range: [0, 13],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 13}
+    }
+  }],
+  range: [0, 13],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 13}
+  }
+}, {ecmaVersion: 6});
+
+test("(x=1) => x * x", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "x",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      }],
+      defaults: [{
+        type: "Literal",
+        value: 1,
+        raw: "1",
+        range: [3, 4],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 4}
+        }
+      }],
+      body: {
+        type: "BinaryExpression",
+        operator: "*",
+        left: {
+          type: "Identifier",
+          name: "x",
+          range: [9, 10],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 10}
+          }
+        },
+        right: {
+          type: "Identifier",
+          name: "x",
+          range: [13, 14],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 14}
+          }
+        },
+        range: [9, 14],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 14}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 14],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 14}
+      }
+    },
+    range: [0, 14],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 14}
+    }
+  }],
+  range: [0, 14],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 14}
+  }
+}, {ecmaVersion: 6});
+
+test("eval => 42", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "eval",
+        range: [0, 4],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 4}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [8, 10],
+        loc: {
+          start: {line: 1, column: 8},
+          end: {line: 1, column: 10}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 10],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 10}
+      }
+    },
+    range: [0, 10],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 10}
+    }
+  }],
+  range: [0, 10],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 10}
+  }
+}, {ecmaVersion: 6});
+
+test("arguments => 42", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "arguments",
+        range: [0, 9],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 9}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [13, 15],
+        loc: {
+          start: {line: 1, column: 13},
+          end: {line: 1, column: 15}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 15],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 15}
+      }
+    },
+    range: [0, 15],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 15}
+    }
+  }],
+  range: [0, 15],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 15}
+  }
+}, {ecmaVersion: 6});
+
+test("(a) => 00", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "a",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: 0,
+        raw: "00",
+        range: [7, 9],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 9}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 9],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 9}
+      }
+    },
+    range: [0, 9],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 9}
+    }
+  }],
+  range: [0, 9],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 9}
+  }
+}, {ecmaVersion: 6});
+
+test("(eval, a) => 42", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [
+        {
+          type: "Identifier",
+          name: "eval",
+          range: [1, 5],
+          loc: {
+            start: {line: 1, column: 1},
+            end: {line: 1, column: 5}
+          }
+        },
+        {
+          type: "Identifier",
+          name: "a",
+          range: [7, 8],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 8}
+          }
+        }
+      ],
+      defaults: [],
+      body: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [13, 15],
+        loc: {
+          start: {line: 1, column: 13},
+          end: {line: 1, column: 15}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 15],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 15}
+      }
+    },
+    range: [0, 15],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 15}
+    }
+  }],
+  range: [0, 15],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 15}
+  }
+}, {ecmaVersion: 6});
+
+test("(eval = 10) => 42", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "eval",
+        range: [1, 5],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 5}
+        }
+      }],
+      defaults: [{
+        type: "Literal",
+        value: 10,
+        raw: "10",
+        range: [8, 10],
+        loc: {
+          start: {line: 1, column: 8},
+          end: {line: 1, column: 10}
+        }
+      }],
+      body: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [15, 17],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 17}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("(eval, a = 10) => 42", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [
+        {
+          type: "Identifier",
+          name: "eval",
+          range: [1, 5],
+          loc: {
+            start: {line: 1, column: 1},
+            end: {line: 1, column: 5}
+          }
+        },
+        {
+          type: "Identifier",
+          name: "a",
+          range: [7, 8],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 8}
+          }
+        }
+      ],
+      defaults: [
+        null,
+        {
+          type: "Literal",
+          value: 10,
+          raw: "10",
+          range: [11, 13],
+          loc: {
+            start: {line: 1, column: 11},
+            end: {line: 1, column: 13}
+          }
+        }
+      ],
+      body: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [18, 20],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 20}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 20],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 20}
+      }
+    },
+    range: [0, 20],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 20}
+    }
+  }],
+  range: [0, 20],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 20}
+  }
+}, {ecmaVersion: 6});
+
+test("(x => x)", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "x",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "Identifier",
+        name: "x",
+        range: [6, 7],
+        loc: {
+          start: {line: 1, column: 6},
+          end: {line: 1, column: 7}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [1, 7],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 7}
+      }
+    },
+    range: [0, 8],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 8}
+    }
+  }],
+  range: [0, 8],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 8}
+  }
+}, {ecmaVersion: 6});
+
+test("x => y => 42", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "ArrowFunctionExpression",
+        id: null,
+        params: [{
+          type: "Identifier",
+          name: "y",
+          range: [5, 6],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 6}
+          }
+        }],
+        defaults: [],
+        body: {
+          type: "Literal",
+          value: 42,
+          raw: "42",
+          range: [10, 12],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 12}
+          }
+        },
+        rest: null,
+        generator: false,
+        expression: true,
+        range: [5, 12],
+        loc: {
+          start: {line: 1, column: 5},
+          end: {line: 1, column: 12}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 12],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 12}
+      }
+    },
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("(x) => ((y, z) => (x, y, z))", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "x",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "ArrowFunctionExpression",
+        id: null,
+        params: [
+          {
+            type: "Identifier",
+            name: "y",
+            range: [9, 10],
+            loc: {
+              start: {line: 1, column: 9},
+              end: {line: 1, column: 10}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "z",
+            range: [12, 13],
+            loc: {
+              start: {line: 1, column: 12},
+              end: {line: 1, column: 13}
+            }
+          }
+        ],
+        defaults: [],
+        body: {
+          type: "SequenceExpression",
+          expressions: [
+            {
+              type: "Identifier",
+              name: "x",
+              range: [19, 20],
+              loc: {
+                start: {line: 1, column: 19},
+                end: {line: 1, column: 20}
+              }
+            },
+            {
+              type: "Identifier",
+              name: "y",
+              range: [22, 23],
+              loc: {
+                start: {line: 1, column: 22},
+                end: {line: 1, column: 23}
+              }
+            },
+            {
+              type: "Identifier",
+              name: "z",
+              range: [25, 26],
+              loc: {
+                start: {line: 1, column: 25},
+                end: {line: 1, column: 26}
+              }
+            }
+          ],
+          range: [19, 26],
+          loc: {
+            start: {line: 1, column: 19},
+            end: {line: 1, column: 26}
+          }
+        },
+        rest: null,
+        generator: false,
+        expression: true,
+        range: [8, 27],
+        loc: {
+          start: {line: 1, column: 8},
+          end: {line: 1, column: 27}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 28],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 28}
+      }
+    },
+    range: [0, 28],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 28}
+    }
+  }],
+  range: [0, 28],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 28}
+  }
+}, {ecmaVersion: 6});
+
+test("foo(() => {})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "CallExpression",
+      callee: {
+        type: "Identifier",
+        name: "foo",
+        range: [0, 3],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 3}
+        }
+      },
+      arguments: [{
+        type: "ArrowFunctionExpression",
+        id: null,
+        params: [],
+        defaults: [],
+        body: {
+          type: "BlockStatement",
+          body: [],
+          range: [10, 12],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 12}
+          }
+        },
+        rest: null,
+        generator: false,
+        expression: false,
+        range: [4, 12],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 12}
+        }
+      }],
+      range: [0, 13],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 13}
+      }
+    },
+    range: [0, 13],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 13}
+    }
+  }],
+  range: [0, 13],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 13}
+  }
+}, {ecmaVersion: 6});
+
+test("foo((x, y) => {})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "CallExpression",
+      callee: {
+        type: "Identifier",
+        name: "foo",
+        range: [0, 3],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 3}
+        }
+      },
+      arguments: [{
+        type: "ArrowFunctionExpression",
+        id: null,
+        params: [
+          {
+            type: "Identifier",
+            name: "x",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "y",
+            range: [8, 9],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 9}
+            }
+          }
+        ],
+        defaults: [],
+        body: {
+          type: "BlockStatement",
+          body: [],
+          range: [14, 16],
+          loc: {
+            start: {line: 1, column: 14},
+            end: {line: 1, column: 16}
+          }
+        },
+        rest: null,
+        generator: false,
+        expression: false,
+        range: [4, 16],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 16}
+        }
+      }],
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+// ES6: Method Definition
+
+test("x = { method() { } }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "method",
+            range: [6, 12],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 12}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [15, 18],
+              loc: {
+                start: {line: 1, column: 15},
+                end: {line: 1, column: 18}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [15, 18],
+            loc: {
+              start: {line: 1, column: 15},
+              end: {line: 1, column: 18}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: false,
+          range: [6, 18],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 18}
+          }
+        }],
+        range: [4, 20],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 20}
+        }
+      },
+      range: [0, 20],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 20}
+      }
+    },
+    range: [0, 20],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 20}
+    }
+  }],
+  range: [0, 20],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 20}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { method(test) { } }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "method",
+            range: [6, 12],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 12}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "test",
+              range: [13, 17],
+              loc: {
+                start: {line: 1, column: 13},
+                end: {line: 1, column: 17}
+              }
+            }],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [19, 22],
+              loc: {
+                start: {line: 1, column: 19},
+                end: {line: 1, column: 22}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [19, 22],
+            loc: {
+              start: {line: 1, column: 19},
+              end: {line: 1, column: 22}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: false,
+          range: [6, 22],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 22}
+          }
+        }],
+        range: [4, 24],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 24}
+        }
+      },
+      range: [0, 24],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 24}
+      }
+    },
+    range: [0, 24],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 24}
+    }
+  }],
+  range: [0, 24],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 24}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { 'method'() { } }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Literal",
+            value: "method",
+            raw: "'method'",
+            range: [6, 14],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 14}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [17, 20],
+              loc: {
+                start: {line: 1, column: 17},
+                end: {line: 1, column: 20}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [17, 20],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 20}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: false,
+          range: [6, 20],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 20}
+          }
+        }],
+        range: [4, 22],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 22}
+        }
+      },
+      range: [0, 22],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 22}
+      }
+    },
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { get() { } }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "get",
+            range: [6, 9],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 9}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [12, 15],
+              loc: {
+                start: {line: 1, column: 12},
+                end: {line: 1, column: 15}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [12, 15],
+            loc: {
+              start: {line: 1, column: 12},
+              end: {line: 1, column: 15}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: false,
+          range: [6, 15],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 15}
+          }
+        }],
+        range: [4, 17],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 17}
+        }
+      },
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { set() { } }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "set",
+            range: [6, 9],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 9}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [12, 15],
+              loc: {
+                start: {line: 1, column: 12},
+                end: {line: 1, column: 15}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [12, 15],
+            loc: {
+              start: {line: 1, column: 12},
+              end: {line: 1, column: 15}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: false,
+          range: [6, 15],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 15}
+          }
+        }],
+        range: [4, 17],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 17}
+        }
+      },
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { method() 42 }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "method",
+            range: [6, 12],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 12}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "Literal",
+              value: 42,
+              raw: "42",
+              range: [15, 17],
+              loc: {
+                start: {line: 1, column: 15},
+                end: {line: 1, column: 17}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: true,
+            range: [15, 17],
+            loc: {
+              start: {line: 1, column: 15},
+              end: {line: 1, column: 17}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: false,
+          range: [6, 17],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 17}
+          }
+        }],
+        range: [4, 19],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 19}
+        }
+      },
+      range: [0, 19],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 19}
+      }
+    },
+    range: [0, 19],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 19}
+    }
+  }],
+  range: [0, 19],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 19}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { get method() 42 }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "method",
+            range: [10, 16],
+            loc: {
+              start: {line: 1, column: 10},
+              end: {line: 1, column: 16}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "Literal",
+              value: 42,
+              raw: "42",
+              range: [19, 21],
+              loc: {
+                start: {line: 1, column: 19},
+                end: {line: 1, column: 21}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: true,
+            range: [19, 21],
+            loc: {
+              start: {line: 1, column: 19},
+              end: {line: 1, column: 21}
+            }
+          },
+          kind: "get",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [6, 21],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 21}
+          }
+        }],
+        range: [4, 23],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 23}
+        }
+      },
+      range: [0, 23],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 23}
+      }
+    },
+    range: [0, 23],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 23}
+    }
+  }],
+  range: [0, 23],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 23}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { set method(val) v = val }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "method",
+            range: [10, 16],
+            loc: {
+              start: {line: 1, column: 10},
+              end: {line: 1, column: 16}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "val",
+              range: [17, 20],
+              loc: {
+                start: {line: 1, column: 17},
+                end: {line: 1, column: 20}
+              }
+            }],
+            defaults: [],
+            body: {
+              type: "AssignmentExpression",
+              operator: "=",
+              left: {
+                type: "Identifier",
+                name: "v",
+                range: [22, 23],
+                loc: {
+                  start: {line: 1, column: 22},
+                  end: {line: 1, column: 23}
+                }
+              },
+              right: {
+                type: "Identifier",
+                name: "val",
+                range: [26, 29],
+                loc: {
+                  start: {line: 1, column: 26},
+                  end: {line: 1, column: 29}
+                }
+              },
+              range: [22, 29],
+              loc: {
+                start: {line: 1, column: 22},
+                end: {line: 1, column: 29}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: true,
+            range: [22, 29],
+            loc: {
+              start: {line: 1, column: 22},
+              end: {line: 1, column: 29}
+            }
+          },
+          kind: "set",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [6, 29],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 29}
+          }
+        }],
+        range: [4, 31],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 31}
+        }
+      },
+      range: [0, 31],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 31}
+      }
+    },
+    range: [0, 31],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 31}
+    }
+  }],
+  range: [0, 31],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 31}
+  }
+}, {ecmaVersion: 6});
+
+// Array Comprehension
+
+test("[[x,b,c] for (x in []) for (b in []) if (b && c)]", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ComprehensionExpression",
+      filter: {
+        type: "LogicalExpression",
+        operator: "&&",
+        left: {
+          type: "Identifier",
+          name: "b",
+          range: [41, 42],
+          loc: {
+            start: {line: 1, column: 41},
+            end: {line: 1, column: 42}
+          }
+        },
+        right: {
+          type: "Identifier",
+          name: "c",
+          range: [46, 47],
+          loc: {
+            start: {line: 1, column: 46},
+            end: {line: 1, column: 47}
+          }
+        },
+        range: [41, 47],
+        loc: {
+          start: {line: 1, column: 41},
+          end: {line: 1, column: 47}
+        }
+      },
+      blocks: [
+        {
+          type: "ComprehensionBlock",
+          left: {
+            type: "Identifier",
+            name: "x",
+            range: [14, 15],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 15}
+            }
+          },
+          right: {
+            type: "ArrayExpression",
+            elements: [],
+            range: [19, 21],
+            loc: {
+              start: {line: 1, column: 19},
+              end: {line: 1, column: 21}
+            }
+          },
+          each: false,
+          range: [9, 22],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 22}
+          },
+          of: false
+        },
+        {
+          type: "ComprehensionBlock",
+          left: {
+            type: "Identifier",
+            name: "b",
+            range: [28, 29],
+            loc: {
+              start: {line: 1, column: 28},
+              end: {line: 1, column: 29}
+            }
+          },
+          right: {
+            type: "ArrayExpression",
+            elements: [],
+            range: [33, 35],
+            loc: {
+              start: {line: 1, column: 33},
+              end: {line: 1, column: 35}
+            }
+          },
+          each: false,
+          range: [23, 36],
+          loc: {
+            start: {line: 1, column: 23},
+            end: {line: 1, column: 36}
+          },
+          of: false
+        }
+      ],
+      body: {
+        type: "ArrayExpression",
+        elements: [
+          {
+            type: "Identifier",
+            name: "x",
+            range: [2, 3],
+            loc: {
+              start: {line: 1, column: 2},
+              end: {line: 1, column: 3}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "b",
+            range: [4, 5],
+            loc: {
+              start: {line: 1, column: 4},
+              end: {line: 1, column: 5}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "c",
+            range: [6, 7],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 7}
+            }
+          }
+        ],
+        range: [1, 8],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 8}
+        }
+      },
+      range: [0, 49],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 49}
+      }
+    },
+    range: [0, 49],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 49}
+    }
+  }],
+  range: [0, 49],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 49}
+  }
+}, {ecmaVersion: 6});
+
+test("[x for (a in [])]", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ComprehensionExpression",
+      filter: null,
+      blocks: [{
+        type: "ComprehensionBlock",
+        left: {
+          type: "Identifier",
+          name: "a",
+          range: [8, 9],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 9}
+          }
+        },
+        right: {
+          type: "ArrayExpression",
+          elements: [],
+          range: [13, 15],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 15}
+          }
+        },
+        each: false,
+        range: [3, 16],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 16}
+        },
+        of: false
+      }],
+      body: {
+        type: "Identifier",
+        name: "x",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      },
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("[1 for (x in [])]", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ComprehensionExpression",
+      filter: null,
+      blocks: [{
+        type: "ComprehensionBlock",
+        left: {
+          type: "Identifier",
+          name: "x",
+          range: [8, 9],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 9}
+          }
+        },
+        right: {
+          type: "ArrayExpression",
+          elements: [],
+          range: [13, 15],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 15}
+          }
+        },
+        each: false,
+        range: [3, 16],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 16}
+        },
+        of: false
+      }],
+      body: {
+        type: "Literal",
+        value: 1,
+        raw: "1",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      },
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("[(x,1) for (x in [])]", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ComprehensionExpression",
+      filter: null,
+      blocks: [{
+        type: "ComprehensionBlock",
+        left: {
+          type: "Identifier",
+          name: "x",
+          range: [12, 13],
+          loc: {
+            start: {line: 1, column: 12},
+            end: {line: 1, column: 13}
+          }
+        },
+        right: {
+          type: "ArrayExpression",
+          elements: [],
+          range: [17, 19],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 19}
+          }
+        },
+        each: false,
+        range: [7, 20],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 20}
+        },
+        of: false
+      }],
+      body: {
+        type: "SequenceExpression",
+        expressions: [
+          {
+            type: "Identifier",
+            name: "x",
+            range: [2, 3],
+            loc: {
+              start: {line: 1, column: 2},
+              end: {line: 1, column: 3}
+            }
+          },
+          {
+            type: "Literal",
+            value: 1,
+            raw: "1",
+            range: [4, 5],
+            loc: {
+              start: {line: 1, column: 4},
+              end: {line: 1, column: 5}
+            }
+          }
+        ],
+        range: [2, 5],
+        loc: {
+          start: {line: 1, column: 2},
+          end: {line: 1, column: 5}
+        }
+      },
+      range: [0, 21],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 21}
+      }
+    },
+    range: [0, 21],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 21}
+    }
+  }],
+  range: [0, 21],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 21}
+  }
+}, {ecmaVersion: 6});
+
+test("[x for (x of array)]", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ComprehensionExpression",
+      filter: null,
+      blocks: [{
+        type: "ComprehensionBlock",
+        left: {
+          type: "Identifier",
+          name: "x",
+          range: [8, 9],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 9}
+          }
+        },
+        right: {
+          type: "Identifier",
+          name: "array",
+          range: [13, 18],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 18}
+          }
+        },
+        range: [3, 19],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 19}
+        },
+        of: true
+      }],
+      body: {
+        type: "Identifier",
+        name: "x",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      },
+      range: [0, 20],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 20}
+      }
+    },
+    range: [0, 20],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 20}
+    }
+  }],
+  range: [0, 20],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 20}
+  }
+}, {ecmaVersion: 6});
+
+test("[x for (x of array) for (y of array2) if (x === test)]", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ComprehensionExpression",
+      filter: {
+        type: "BinaryExpression",
+        operator: "===",
+        left: {
+          type: "Identifier",
+          name: "x",
+          range: [42, 43],
+          loc: {
+            start: {line: 1, column: 42},
+            end: {line: 1, column: 43}
+          }
+        },
+        right: {
+          type: "Identifier",
+          name: "test",
+          range: [48, 52],
+          loc: {
+            start: {line: 1, column: 48},
+            end: {line: 1, column: 52}
+          }
+        },
+        range: [42, 52],
+        loc: {
+          start: {line: 1, column: 42},
+          end: {line: 1, column: 52}
+        }
+      },
+      blocks: [
+        {
+          type: "ComprehensionBlock",
+          left: {
+            type: "Identifier",
+            name: "x",
+            range: [8, 9],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 9}
+            }
+          },
+          right: {
+            type: "Identifier",
+            name: "array",
+            range: [13, 18],
+            loc: {
+              start: {line: 1, column: 13},
+              end: {line: 1, column: 18}
+            }
+          },
+          range: [3, 19],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 19}
+          },
+          of: true
+        },
+        {
+          type: "ComprehensionBlock",
+          left: {
+            type: "Identifier",
+            name: "y",
+            range: [25, 26],
+            loc: {
+              start: {line: 1, column: 25},
+              end: {line: 1, column: 26}
+            }
+          },
+          right: {
+            type: "Identifier",
+            name: "array2",
+            range: [30, 36],
+            loc: {
+              start: {line: 1, column: 30},
+              end: {line: 1, column: 36}
+            }
+          },
+          range: [20, 37],
+          loc: {
+            start: {line: 1, column: 20},
+            end: {line: 1, column: 37}
+          },
+          of: true
+        }
+      ],
+      body: {
+        type: "Identifier",
+        name: "x",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      },
+      range: [0, 54],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 54}
+      }
+    },
+    range: [0, 54],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 54}
+    }
+  }],
+  range: [0, 54],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 54}
+  }
+}, {ecmaVersion: 6});
+
+// Harmony: Object Literal Property Value Shorthand
+
+test("x = { y, z }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [
+          {
+            type: "Property",
+            key: {
+              type: "Identifier",
+              name: "y",
+              range: [6, 7],
+              loc: {
+                start: {line: 1, column: 6},
+                end: {line: 1, column: 7}
+              }
+            },
+            value: {
+              type: "Identifier",
+              name: "y",
+              range: [6, 7],
+              loc: {
+                start: {line: 1, column: 6},
+                end: {line: 1, column: 7}
+              }
+            },
+            kind: "init",
+            method: false,
+            shorthand: true,
+            computed: false,
+            range: [6, 7],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 7}
+            }
+          },
+          {
+            type: "Property",
+            key: {
+              type: "Identifier",
+              name: "z",
+              range: [9, 10],
+              loc: {
+                start: {line: 1, column: 9},
+                end: {line: 1, column: 10}
+              }
+            },
+            value: {
+              type: "Identifier",
+              name: "z",
+              range: [9, 10],
+              loc: {
+                start: {line: 1, column: 9},
+                end: {line: 1, column: 10}
+              }
+            },
+            kind: "init",
+            method: false,
+            shorthand: true,
+            computed: false,
+            range: [9, 10],
+            loc: {
+              start: {line: 1, column: 9},
+              end: {line: 1, column: 10}
+            }
+          }
+        ],
+        range: [4, 12],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 12}
+        }
+      },
+      range: [0, 12],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 12}
+      }
+    },
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+// Harmony: Destructuring
+
+test("[a, b] = [b, a]", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [1, 2],
+            loc: {
+              start: {line: 1, column: 1},
+              end: {line: 1, column: 2}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "b",
+            range: [4, 5],
+            loc: {
+              start: {line: 1, column: 4},
+              end: {line: 1, column: 5}
+            }
+          }
+        ],
+        range: [0, 6],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 6}
+        }
+      },
+      right: {
+        type: "ArrayExpression",
+        elements: [
+          {
+            type: "Identifier",
+            name: "b",
+            range: [10, 11],
+            loc: {
+              start: {line: 1, column: 10},
+              end: {line: 1, column: 11}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "a",
+            range: [13, 14],
+            loc: {
+              start: {line: 1, column: 13},
+              end: {line: 1, column: 14}
+            }
+          }
+        ],
+        range: [9, 15],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 15}
+        }
+      },
+      range: [0, 15],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 15}
+      }
+    },
+    range: [0, 15],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 15}
+    }
+  }],
+  range: [0, 15],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 15}
+  }
+}, {ecmaVersion: 6});
+
+test("({ responseText: text }) = res", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "responseText",
+            range: [3, 15],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 15}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "text",
+            range: [17, 21],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 21}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [3, 21],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 21}
+          }
+        }],
+        range: [1, 23],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 23}
+        }
+      },
+      right: {
+        type: "Identifier",
+        name: "res",
+        range: [27, 30],
+        loc: {
+          start: {line: 1, column: 27},
+          end: {line: 1, column: 30}
+        }
+      },
+      range: [0, 30],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 30}
+      }
+    },
+    range: [0, 30],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 30}
+    }
+  }],
+  range: [0, 30],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 30}
+  }
+}, {ecmaVersion: 6});
+
+test("const {a} = {}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [7, 8],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 8}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "a",
+            range: [7, 8],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 8}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [7, 8],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 8}
+          }
+        }],
+        range: [6, 9],
+        loc: {
+          start: {line: 1, column: 6},
+          end: {line: 1, column: 9}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [],
+        range: [12, 14],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 14}
+        }
+      },
+      range: [6, 14],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 14}
+      }
+    }],
+    kind: "const",
+    range: [0, 14],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 14}
+    }
+  }],
+  range: [0, 14],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 14}
+  }
+}, {ecmaVersion: 6});
+
+test("const [a] = []", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ArrayPattern",
+        elements: [{
+          type: "Identifier",
+          name: "a",
+          range: [7, 8],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 8}
+          }
+        }],
+        range: [6, 9],
+        loc: {
+          start: {line: 1, column: 6},
+          end: {line: 1, column: 9}
+        }
+      },
+      init: {
+        type: "ArrayExpression",
+        elements: [],
+        range: [12, 14],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 14}
+        }
+      },
+      range: [6, 14],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 14}
+      }
+    }],
+    kind: "const",
+    range: [0, 14],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 14}
+    }
+  }],
+  range: [0, 14],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 14}
+  }
+}, {ecmaVersion: 6});
+
+test("let {a} = {}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [5, 6],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 6}
+          }
+        }],
+        range: [4, 7],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 7}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [],
+        range: [10, 12],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 12}
+        }
+      },
+      range: [4, 12],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 12}
+      }
+    }],
+    kind: "let",
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("let [a] = []", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ArrayPattern",
+        elements: [{
+          type: "Identifier",
+          name: "a",
+          range: [5, 6],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 6}
+          }
+        }],
+        range: [4, 7],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 7}
+        }
+      },
+      init: {
+        type: "ArrayExpression",
+        elements: [],
+        range: [10, 12],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 12}
+        }
+      },
+      range: [4, 12],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 12}
+      }
+    }],
+    kind: "let",
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("var {a} = {}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [5, 6],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 6}
+          }
+        }],
+        range: [4, 7],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 7}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [],
+        range: [10, 12],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 12}
+        }
+      },
+      range: [4, 12],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 12}
+      }
+    }],
+    kind: "var",
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("var [a] = []", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ArrayPattern",
+        elements: [{
+          type: "Identifier",
+          name: "a",
+          range: [5, 6],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 6}
+          }
+        }],
+        range: [4, 7],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 7}
+        }
+      },
+      init: {
+        type: "ArrayExpression",
+        elements: [],
+        range: [10, 12],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 12}
+        }
+      },
+      range: [4, 12],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 12}
+      }
+    }],
+    kind: "var",
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("const {a:b} = {}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [7, 8],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 8}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "b",
+            range: [9, 10],
+            loc: {
+              start: {line: 1, column: 9},
+              end: {line: 1, column: 10}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [7, 10],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 10}
+          }
+        }],
+        range: [6, 11],
+        loc: {
+          start: {line: 1, column: 6},
+          end: {line: 1, column: 11}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [],
+        range: [14, 16],
+        loc: {
+          start: {line: 1, column: 14},
+          end: {line: 1, column: 16}
+        }
+      },
+      range: [6, 16],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 16}
+      }
+    }],
+    kind: "const",
+    range: [0, 16],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 16}
+    }
+  }],
+  range: [0, 16],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 16}
+  }
+}, {ecmaVersion: 6});
+
+test("let {a:b} = {}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "b",
+            range: [7, 8],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 8}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [5, 8],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 8}
+          }
+        }],
+        range: [4, 9],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 9}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [],
+        range: [12, 14],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 14}
+        }
+      },
+      range: [4, 14],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 14}
+      }
+    }],
+    kind: "let",
+    range: [0, 14],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 14}
+    }
+  }],
+  range: [0, 14],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 14}
+  }
+}, {ecmaVersion: 6});
+
+test("var {a:b} = {}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "b",
+            range: [7, 8],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 8}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [5, 8],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 8}
+          }
+        }],
+        range: [4, 9],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 9}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [],
+        range: [12, 14],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 14}
+        }
+      },
+      range: [4, 14],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 14}
+      }
+    }],
+    kind: "var",
+    range: [0, 14],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 14}
+    }
+  }],
+  range: [0, 14],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 14}
+  }
+}, {ecmaVersion: 6});
+
+// Harmony: Modules
+
+test("module \"crypto\" {}", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [7, 15],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 15}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [16, 18],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 18}
+      }
+    },
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("module crypto from \"crypto\";", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Identifier",
+      name: "crypto",
+      range: [7, 13],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 13}
+      }
+    },
+    source: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [19, 27],
+      loc: {
+        start: {line: 1, column: 19},
+        end: {line: 1, column: 27}
+      }
+    },
+    body: null,
+    range: [0, 28],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 28}
+    }
+  }],
+  range: [0, 28],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 28}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"crypto/e\" {}", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "crypto/e",
+      raw: "\"crypto/e\"",
+      range: [7, 17],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 17}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [18, 20],
+      loc: {
+        start: {line: 1, column: 18},
+        end: {line: 1, column: 20}
+      }
+    },
+    range: [0, 20],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 20}
+    }
+  }],
+  range: [0, 20],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 20}
+  }
+}, {ecmaVersion: 6});
+
+test("export var document", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: {
+      type: "VariableDeclaration",
+      declarations: [{
+        type: "VariableDeclarator",
+        id: {
+          type: "Identifier",
+          name: "document",
+          range: [11, 19],
+          loc: {
+            start: {line: 1, column: 11},
+            end: {line: 1, column: 19}
+          }
+        },
+        init: null,
+        range: [11, 19],
+        loc: {
+          start: {line: 1, column: 11},
+          end: {line: 1, column: 19}
+        }
+      }],
+      kind: "var",
+      range: [7, 19],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 19}
+      }
+    },
+    specifiers: null,
+    source: null,
+    range: [0, 19],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 19}
+    }
+  }],
+  range: [0, 19],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 19}
+  }
+}, {ecmaVersion: 6});
+
+test("export var document = { }", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: {
+      type: "VariableDeclaration",
+      declarations: [{
+        type: "VariableDeclarator",
+        id: {
+          type: "Identifier",
+          name: "document",
+          range: [11, 19],
+          loc: {
+            start: {line: 1, column: 11},
+            end: {line: 1, column: 19}
+          }
+        },
+        init: {
+          type: "ObjectExpression",
+          properties: [],
+          range: [22, 25],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 25}
+          }
+        },
+        range: [11, 25],
+        loc: {
+          start: {line: 1, column: 11},
+          end: {line: 1, column: 25}
+        }
+      }],
+      kind: "var",
+      range: [7, 25],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 25}
+      }
+    },
+    specifiers: null,
+    source: null,
+    range: [0, 25],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 25}
+    }
+  }],
+  range: [0, 25],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 25}
+  }
+}, {ecmaVersion: 6});
+
+test("export let document", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: {
+      type: "VariableDeclaration",
+      declarations: [{
+        type: "VariableDeclarator",
+        id: {
+          type: "Identifier",
+          name: "document",
+          range: [11, 19],
+          loc: {
+            start: {line: 1, column: 11},
+            end: {line: 1, column: 19}
+          }
+        },
+        init: null,
+        range: [11, 19],
+        loc: {
+          start: {line: 1, column: 11},
+          end: {line: 1, column: 19}
+        }
+      }],
+      kind: "let",
+      range: [7, 19],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 19}
+      }
+    },
+    specifiers: null,
+    source: null,
+    range: [0, 19],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 19}
+    }
+  }],
+  range: [0, 19],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 19}
+  }
+}, {ecmaVersion: 6});
+
+test("export let document = { }", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: {
+      type: "VariableDeclaration",
+      declarations: [{
+        type: "VariableDeclarator",
+        id: {
+          type: "Identifier",
+          name: "document",
+          range: [11, 19],
+          loc: {
+            start: {line: 1, column: 11},
+            end: {line: 1, column: 19}
+          }
+        },
+        init: {
+          type: "ObjectExpression",
+          properties: [],
+          range: [22, 25],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 25}
+          }
+        },
+        range: [11, 25],
+        loc: {
+          start: {line: 1, column: 11},
+          end: {line: 1, column: 25}
+        }
+      }],
+      kind: "let",
+      range: [7, 25],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 25}
+      }
+    },
+    specifiers: null,
+    source: null,
+    range: [0, 25],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 25}
+    }
+  }],
+  range: [0, 25],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 25}
+  }
+}, {ecmaVersion: 6});
+
+test("export const document = { }", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: {
+      type: "VariableDeclaration",
+      declarations: [{
+        type: "VariableDeclarator",
+        id: {
+          type: "Identifier",
+          name: "document",
+          range: [13, 21],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 21}
+          }
+        },
+        init: {
+          type: "ObjectExpression",
+          properties: [],
+          range: [24, 27],
+          loc: {
+            start: {line: 1, column: 24},
+            end: {line: 1, column: 27}
+          }
+        },
+        range: [13, 27],
+        loc: {
+          start: {line: 1, column: 13},
+          end: {line: 1, column: 27}
+        }
+      }],
+      kind: "const",
+      range: [7, 27],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 27}
+      }
+    },
+    specifiers: null,
+    source: null,
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+test("export function parse() { }", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: {
+      type: "FunctionDeclaration",
+      id: {
+        type: "Identifier",
+        name: "parse",
+        range: [16, 21],
+        loc: {
+          start: {line: 1, column: 16},
+          end: {line: 1, column: 21}
+        }
+      },
+      params: [],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [24, 27],
+        loc: {
+          start: {line: 1, column: 24},
+          end: {line: 1, column: 27}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [7, 27],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 27}
+      }
+    },
+    specifiers: null,
+    source: null,
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+test("export class Class {}", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: {
+      type: "ClassDeclaration",
+      id: {
+        type: "Identifier",
+        name: "Class",
+        range: [13, 18],
+        loc: {
+          start: {line: 1, column: 13},
+          end: {line: 1, column: 18}
+        }
+      },
+      superClass: null,
+      body: {
+        type: "ClassBody",
+        body: [],
+        range: [19, 21],
+        loc: {
+          start: {line: 1, column: 19},
+          end: {line: 1, column: 21}
+        }
+      },
+      range: [7, 21],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 21}
+      }
+    },
+    specifiers: null,
+    source: null,
+    range: [0, 21],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 21}
+    }
+  }],
+  range: [0, 21],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 21}
+  }
+}, {ecmaVersion: 6});
+
+test("export default = 42", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "Identifier",
+        name: "default",
+        range: [7, 14],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 14}
+        }
+      },
+      init: {
+        type: "Literal",
+        value: 42,
+        raw: "42",
+        range: [17, 19],
+        loc: {
+          start: {line: 1, column: 17},
+          end: {line: 1, column: 19}
+        }
+      },
+      range: [7, 19],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 19}
+      }
+    }],
+    specifiers: null,
+    source: null,
+    range: [0, 19],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 19}
+    }
+  }],
+  range: [0, 19],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 19}
+  }
+}, {ecmaVersion: 6});
+
+test("export *", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: null,
+    specifiers: [{
+      type: "ExportBatchSpecifier",
+      range: [7, 8],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 8}
+      }
+    }],
+    source: null,
+    range: [0, 8],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 8}
+    }
+  }],
+  range: [0, 8],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 8}
+  }
+}, {ecmaVersion: 6});
+
+test("export * from \"crypto\"", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: null,
+    specifiers: [{
+      type: "ExportBatchSpecifier",
+      range: [7, 8],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 8}
+      }
+    }],
+    source: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [14, 22],
+      loc: {
+        start: {line: 1, column: 14},
+        end: {line: 1, column: 22}
+      }
+    },
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("export { encrypt }", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: null,
+    specifiers: [{
+      type: "ExportSpecifier",
+      id: {
+        type: "Identifier",
+        name: "encrypt",
+        range: [9, 16],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
+      name: null,
+      range: [9, 16],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 16}
+      }
+    }],
+    source: null,
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("export { encrypt, decrypt }", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: null,
+    specifiers: [
+      {
+        type: "ExportSpecifier",
+        id: {
+          type: "Identifier",
+          name: "encrypt",
+          range: [9, 16],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 16}
+          }
+        },
+        name: null,
+        range: [9, 16],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
+      {
+        type: "ExportSpecifier",
+        id: {
+          type: "Identifier",
+          name: "decrypt",
+          range: [18, 25],
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 25}
+          }
+        },
+        name: null,
+        range: [18, 25],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 25}
+        }
+      }
+    ],
+    source: null,
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+test("export { encrypt as default }", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: null,
+    specifiers: [{
+      type: "ExportSpecifier",
+      id: {
+        type: "Identifier",
+        name: "encrypt",
+        range: [9, 16],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
+      name: {
+        type: "Identifier",
+        name: "default",
+        range: [20, 27],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 27}
+        }
+      },
+      range: [9, 27],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 27}
+      }
+    }],
+    source: null,
+    range: [0, 29],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 29}
+    }
+  }],
+  range: [0, 29],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 29}
+  }
+}, {ecmaVersion: 6});
+
+test("export { encrypt, decrypt as dec }", {
+  type: "Program",
+  body: [{
+    type: "ExportDeclaration",
+    declaration: null,
+    specifiers: [
+      {
+        type: "ExportSpecifier",
+        id: {
+          type: "Identifier",
+          name: "encrypt",
+          range: [9, 16],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 16}
+          }
+        },
+        name: null,
+        range: [9, 16],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
+      {
+        type: "ExportSpecifier",
+        id: {
+          type: "Identifier",
+          name: "decrypt",
+          range: [18, 25],
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 25}
+          }
+        },
+        name: {
+          type: "Identifier",
+          name: "dec",
+          range: [29, 32],
+          loc: {
+            start: {line: 1, column: 29},
+            end: {line: 1, column: 32}
+          }
+        },
+        range: [18, 32],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 32}
+        }
+      }
+    ],
+    source: null,
+    range: [0, 34],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 34}
+    }
+  }],
+  range: [0, 34],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 34}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"lib\" { export var document }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "lib",
+      raw: "\"lib\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: {
+          type: "VariableDeclaration",
+          declarations: [{
+            type: "VariableDeclarator",
+            id: {
+              type: "Identifier",
+              name: "document",
+              range: [26, 34],
+              loc: {
+                start: {line: 1, column: 26},
+                end: {line: 1, column: 34}
+              }
+            },
+            init: null,
+            range: [26, 34],
+            loc: {
+              start: {line: 1, column: 26},
+              end: {line: 1, column: 34}
+            }
+          }],
+          kind: "var",
+          range: [22, 35],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 35}
+          }
+        },
+        specifiers: null,
+        source: null,
+        range: [15, 35],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 35}
+        }
+      }],
+      range: [13, 36],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 36}
+      }
+    },
+    range: [0, 36],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 36}
+    }
+  }],
+  range: [0, 36],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 36}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"lib\" { export var document = { } }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "lib",
+      raw: "\"lib\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: {
+          type: "VariableDeclaration",
+          declarations: [{
+            type: "VariableDeclarator",
+            id: {
+              type: "Identifier",
+              name: "document",
+              range: [26, 34],
+              loc: {
+                start: {line: 1, column: 26},
+                end: {line: 1, column: 34}
+              }
+            },
+            init: {
+              type: "ObjectExpression",
+              properties: [],
+              range: [37, 40],
+              loc: {
+                start: {line: 1, column: 37},
+                end: {line: 1, column: 40}
+              }
+            },
+            range: [26, 40],
+            loc: {
+              start: {line: 1, column: 26},
+              end: {line: 1, column: 40}
+            }
+          }],
+          kind: "var",
+          range: [22, 41],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 41}
+          }
+        },
+        specifiers: null,
+        source: null,
+        range: [15, 41],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 41}
+        }
+      }],
+      range: [13, 42],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 42}
+      }
+    },
+    range: [0, 42],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 42}
+    }
+  }],
+  range: [0, 42],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 42}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"lib\" { export let document }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "lib",
+      raw: "\"lib\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: {
+          type: "VariableDeclaration",
+          declarations: [{
+            type: "VariableDeclarator",
+            id: {
+              type: "Identifier",
+              name: "document",
+              range: [26, 34],
+              loc: {
+                start: {line: 1, column: 26},
+                end: {line: 1, column: 34}
+              }
+            },
+            init: null,
+            range: [26, 34],
+            loc: {
+              start: {line: 1, column: 26},
+              end: {line: 1, column: 34}
+            }
+          }],
+          kind: "let",
+          range: [22, 35],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 35}
+          }
+        },
+        specifiers: null,
+        source: null,
+        range: [15, 35],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 35}
+        }
+      }],
+      range: [13, 36],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 36}
+      }
+    },
+    range: [0, 36],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 36}
+    }
+  }],
+  range: [0, 36],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 36}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"lib\" { export let document = { } }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "lib",
+      raw: "\"lib\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: {
+          type: "VariableDeclaration",
+          declarations: [{
+            type: "VariableDeclarator",
+            id: {
+              type: "Identifier",
+              name: "document",
+              range: [26, 34],
+              loc: {
+                start: {line: 1, column: 26},
+                end: {line: 1, column: 34}
+              }
+            },
+            init: {
+              type: "ObjectExpression",
+              properties: [],
+              range: [37, 40],
+              loc: {
+                start: {line: 1, column: 37},
+                end: {line: 1, column: 40}
+              }
+            },
+            range: [26, 40],
+            loc: {
+              start: {line: 1, column: 26},
+              end: {line: 1, column: 40}
+            }
+          }],
+          kind: "let",
+          range: [22, 41],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 41}
+          }
+        },
+        specifiers: null,
+        source: null,
+        range: [15, 41],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 41}
+        }
+      }],
+      range: [13, 42],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 42}
+      }
+    },
+    range: [0, 42],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 42}
+    }
+  }],
+  range: [0, 42],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 42}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"lib\" { export const document = { } }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "lib",
+      raw: "\"lib\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: {
+          type: "VariableDeclaration",
+          declarations: [{
+            type: "VariableDeclarator",
+            id: {
+              type: "Identifier",
+              name: "document",
+              range: [28, 36],
+              loc: {
+                start: {line: 1, column: 28},
+                end: {line: 1, column: 36}
+              }
+            },
+            init: {
+              type: "ObjectExpression",
+              properties: [],
+              range: [39, 42],
+              loc: {
+                start: {line: 1, column: 39},
+                end: {line: 1, column: 42}
+              }
+            },
+            range: [28, 42],
+            loc: {
+              start: {line: 1, column: 28},
+              end: {line: 1, column: 42}
+            }
+          }],
+          kind: "const",
+          range: [22, 43],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 43}
+          }
+        },
+        specifiers: null,
+        source: null,
+        range: [15, 43],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 43}
+        }
+      }],
+      range: [13, 44],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 44}
+      }
+    },
+    range: [0, 44],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 44}
+    }
+  }],
+  range: [0, 44],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 44}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"lib\" { export function parse() { } }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "lib",
+      raw: "\"lib\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: {
+          type: "FunctionDeclaration",
+          id: {
+            type: "Identifier",
+            name: "parse",
+            range: [31, 36],
+            loc: {
+              start: {line: 1, column: 31},
+              end: {line: 1, column: 36}
+            }
+          },
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [39, 42],
+            loc: {
+              start: {line: 1, column: 39},
+              end: {line: 1, column: 42}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [22, 42],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 42}
+          }
+        },
+        specifiers: null,
+        source: null,
+        range: [15, 42],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 42}
+        }
+      }],
+      range: [13, 44],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 44}
+      }
+    },
+    range: [0, 44],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 44}
+    }
+  }],
+  range: [0, 44],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 44}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"lib\" { export class Class {} }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "lib",
+      raw: "\"lib\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: {
+          type: "ClassDeclaration",
+          id: {
+            type: "Identifier",
+            name: "Class",
+            range: [28, 33],
+            loc: {
+              start: {line: 1, column: 28},
+              end: {line: 1, column: 33}
+            }
+          },
+          superClass: null,
+          body: {
+            type: "ClassBody",
+            body: [],
+            range: [34, 36],
+            loc: {
+              start: {line: 1, column: 34},
+              end: {line: 1, column: 36}
+            }
+          },
+          range: [22, 36],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 36}
+          }
+        },
+        specifiers: null,
+        source: null,
+        range: [15, 36],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 36}
+        }
+      }],
+      range: [13, 38],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 38}
+      }
+    },
+    range: [0, 38],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 38}
+    }
+  }],
+  range: [0, 38],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 38}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"lib\" { export * }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "lib",
+      raw: "\"lib\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: null,
+        specifiers: [{
+          type: "ExportBatchSpecifier",
+          range: [22, 23],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 23}
+          }
+        }],
+        source: null,
+        range: [15, 24],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 24}
+        }
+      }],
+      range: [13, 25],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 25}
+      }
+    },
+    range: [0, 25],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 25}
+    }
+  }],
+  range: [0, 25],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 25}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"security\" { export * from \"crypto\" }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "security",
+      raw: "\"security\"",
+      range: [7, 17],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 17}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: null,
+        specifiers: [{
+          type: "ExportBatchSpecifier",
+          range: [27, 28],
+          loc: {
+            start: {line: 1, column: 27},
+            end: {line: 1, column: 28}
+          }
+        }],
+        source: {
+          type: "Literal",
+          value: "crypto",
+          raw: "\"crypto\"",
+          range: [34, 42],
+          loc: {
+            start: {line: 1, column: 34},
+            end: {line: 1, column: 42}
+          }
+        },
+        range: [20, 43],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 43}
+        }
+      }],
+      range: [18, 44],
+      loc: {
+        start: {line: 1, column: 18},
+        end: {line: 1, column: 44}
+      }
+    },
+    range: [0, 44],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 44}
+    }
+  }],
+  range: [0, 44],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 44}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"crypto\" { export { encrypt } }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [7, 15],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 15}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: null,
+        specifiers: [{
+          type: "ExportSpecifier",
+          id: {
+            type: "Identifier",
+            name: "encrypt",
+            range: [27, 34],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 34}
+            }
+          },
+          name: null,
+          range: [27, 34],
+          loc: {
+            start: {line: 1, column: 27},
+            end: {line: 1, column: 34}
+          }
+        }],
+        source: null,
+        range: [18, 37],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 37}
+        }
+      }],
+      range: [16, 38],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 38}
+      }
+    },
+    range: [0, 38],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 38}
+    }
+  }],
+  range: [0, 38],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 38}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"crypto\" { export { encrypt, decrypt } }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [7, 15],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 15}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: null,
+        specifiers: [
+          {
+            type: "ExportSpecifier",
+            id: {
+              type: "Identifier",
+              name: "encrypt",
+              range: [27, 34],
+              loc: {
+                start: {line: 1, column: 27},
+                end: {line: 1, column: 34}
+              }
+            },
+            name: null,
+            range: [27, 34],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 34}
+            }
+          },
+          {
+            type: "ExportSpecifier",
+            id: {
+              type: "Identifier",
+              name: "decrypt",
+              range: [36, 43],
+              loc: {
+                start: {line: 1, column: 36},
+                end: {line: 1, column: 43}
+              }
+            },
+            name: null,
+            range: [36, 43],
+            loc: {
+              start: {line: 1, column: 36},
+              end: {line: 1, column: 43}
+            }
+          }
+        ],
+        source: null,
+        range: [18, 46],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 46}
+        }
+      }],
+      range: [16, 47],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 47}
+      }
+    },
+    range: [0, 47],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 47}
+    }
+  }],
+  range: [0, 47],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 47}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"crypto\" { export { encrypt, decrypt as dec } }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [7, 15],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 15}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExportDeclaration",
+        declaration: null,
+        specifiers: [
+          {
+            type: "ExportSpecifier",
+            id: {
+              type: "Identifier",
+              name: "encrypt",
+              range: [27, 34],
+              loc: {
+                start: {line: 1, column: 27},
+                end: {line: 1, column: 34}
+              }
+            },
+            name: null,
+            range: [27, 34],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 34}
+            }
+          },
+          {
+            type: "ExportSpecifier",
+            id: {
+              type: "Identifier",
+              name: "decrypt",
+              range: [36, 43],
+              loc: {
+                start: {line: 1, column: 36},
+                end: {line: 1, column: 43}
+              }
+            },
+            name: {
+              type: "Identifier",
+              name: "dec",
+              range: [47, 50],
+              loc: {
+                start: {line: 1, column: 47},
+                end: {line: 1, column: 50}
+              }
+            },
+            range: [36, 50],
+            loc: {
+              start: {line: 1, column: 36},
+              end: {line: 1, column: 50}
+            }
+          }
+        ],
+        source: null,
+        range: [18, 53],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 53}
+        }
+      }],
+      range: [16, 54],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 54}
+      }
+    },
+    range: [0, 54],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 54}
+    }
+  }],
+  range: [0, 54],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 54}
+  }
+}, {ecmaVersion: 6});
+
+test("import \"jquery\"", {
+  type: "Program",
+  body: [{
+    type: "ImportDeclaration",
+    specifiers: [],
+    source: {
+      type: "Literal",
+      value: "jquery",
+      raw: "\"jquery\"",
+      range: [7, 15],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 15}
+      }
+    },
+    range: [0, 15],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 15}
+    }
+  }],
+  range: [0, 15],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 15}
+  }
+}, {ecmaVersion: 6});
+
+test("import $ from \"jquery\"", {
+  type: "Program",
+  body: [{
+    type: "ImportDeclaration",
+    specifiers: [{
+      type: "ImportSpecifier",
+      id: {
+        type: "Identifier",
+        name: "$",
+        range: [7, 8],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 8}
+        }
+      },
+      name: null,
+      range: [7, 8],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 8}
+      }
+    }],
+    kind: "default",
+    source: {
+      type: "Literal",
+      value: "jquery",
+      raw: "\"jquery\"",
+      range: [14, 22],
+      loc: {
+        start: {line: 1, column: 14},
+        end: {line: 1, column: 22}
+      }
+    },
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("import { encrypt, decrypt } from \"crypto\"", {
+  type: "Program",
+  body: [{
+    type: "ImportDeclaration",
+    specifiers: [
+      {
+        type: "ImportSpecifier",
+        id: {
+          type: "Identifier",
+          name: "encrypt",
+          range: [9, 16],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 16}
+          }
+        },
+        name: null,
+        range: [9, 16],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
+      {
+        type: "ImportSpecifier",
+        id: {
+          type: "Identifier",
+          name: "decrypt",
+          range: [18, 25],
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 25}
+          }
+        },
+        name: null,
+        range: [18, 25],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 25}
+        }
+      }
+    ],
+    kind: "named",
+    source: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [33, 41],
+      loc: {
+        start: {line: 1, column: 33},
+        end: {line: 1, column: 41}
+      }
+    },
+    range: [0, 41],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 41}
+    }
+  }],
+  range: [0, 41],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 41}
+  }
+}, {ecmaVersion: 6});
+
+test("import { encrypt as enc } from \"crypto\"", {
+  type: "Program",
+  body: [{
+    type: "ImportDeclaration",
+    specifiers: [{
+      type: "ImportSpecifier",
+      id: {
+        type: "Identifier",
+        name: "encrypt",
+        range: [9, 16],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
+      name: {
+        type: "Identifier",
+        name: "enc",
+        range: [20, 23],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 23}
+        }
+      },
+      range: [9, 23],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 23}
+      }
+    }],
+    kind: "named",
+    source: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [31, 39],
+      loc: {
+        start: {line: 1, column: 31},
+        end: {line: 1, column: 39}
+      }
+    },
+    range: [0, 39],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 39}
+    }
+  }],
+  range: [0, 39],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 39}
+  }
+}, {ecmaVersion: 6});
+
+test("import { decrypt, encrypt as enc } from \"crypto\"", {
+  type: "Program",
+  body: [{
+    type: "ImportDeclaration",
+    specifiers: [
+      {
+        type: "ImportSpecifier",
+        id: {
+          type: "Identifier",
+          name: "decrypt",
+          range: [9, 16],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 16}
+          }
+        },
+        name: null,
+        range: [9, 16],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
+      {
+        type: "ImportSpecifier",
+        id: {
+          type: "Identifier",
+          name: "encrypt",
+          range: [18, 25],
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 25}
+          }
+        },
+        name: {
+          type: "Identifier",
+          name: "enc",
+          range: [29, 32],
+          loc: {
+            start: {line: 1, column: 29},
+            end: {line: 1, column: 32}
+          }
+        },
+        range: [18, 32],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 32}
+        }
+      }
+    ],
+    kind: "named",
+    source: {
+      type: "Literal",
+      value: "crypto",
+      raw: "\"crypto\"",
+      range: [40, 48],
+      loc: {
+        start: {line: 1, column: 40},
+        end: {line: 1, column: 48}
+      }
+    },
+    range: [0, 48],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 48}
+    }
+  }],
+  range: [0, 48],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 48}
+  }
+}, {ecmaVersion: 6});
+
+test("import default from \"foo\"", {
+  type: "Program",
+  body: [{
+    type: "ImportDeclaration",
+    specifiers: [{
+      type: "ImportSpecifier",
+      id: {
+        type: "Identifier",
+        name: "default",
+        range: [7, 14],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 14}
+        }
+      },
+      name: null,
+      range: [7, 14],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 14}
+      }
+    }],
+    kind: "default",
+    source: {
+      type: "Literal",
+      value: "foo",
+      raw: "\"foo\"",
+      range: [20, 25],
+      loc: {
+        start: {line: 1, column: 20},
+        end: {line: 1, column: 25}
+      }
+    },
+    range: [0, 25],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 25}
+    }
+  }],
+  range: [0, 25],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 25}
+  }
+}, {ecmaVersion: 6});
+
+test("import { null as nil } from \"bar\"", {
+  type: "Program",
+  body: [{
+    type: "ImportDeclaration",
+    specifiers: [{
+      type: "ImportSpecifier",
+      id: {
+        type: "Identifier",
+        name: "null",
+        range: [9, 13],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 13}
+        }
+      },
+      name: {
+        type: "Identifier",
+        name: "nil",
+        range: [17, 20],
+        loc: {
+          start: {line: 1, column: 17},
+          end: {line: 1, column: 20}
+        }
+      },
+      range: [9, 20],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 20}
+      }
+    }],
+    kind: "named",
+    source: {
+      type: "Literal",
+      value: "bar",
+      raw: "\"bar\"",
+      range: [28, 33],
+      loc: {
+        start: {line: 1, column: 28},
+        end: {line: 1, column: 33}
+      }
+    },
+    range: [0, 33],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 33}
+    }
+  }],
+  range: [0, 33],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 33}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"security\" { import \"cryto\" }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "security",
+      raw: "\"security\"",
+      range: [7, 17],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 17}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ImportDeclaration",
+        specifiers: [],
+        source: {
+          type: "Literal",
+          value: "cryto",
+          raw: "\"cryto\"",
+          range: [27, 34],
+          loc: {
+            start: {line: 1, column: 27},
+            end: {line: 1, column: 34}
+          }
+        },
+        range: [20, 35],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 35}
+        }
+      }],
+      range: [18, 36],
+      loc: {
+        start: {line: 1, column: 18},
+        end: {line: 1, column: 36}
+      }
+    },
+    range: [0, 36],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 36}
+    }
+  }],
+  range: [0, 36],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 36}
+  }
+}, {ecmaVersion: 6});
+
+test("module()", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "CallExpression",
+      callee: {
+        type: "Identifier",
+        name: "module",
+        range: [0, 6],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 6}
+        }
+      },
+      arguments: [],
+      range: [0, 8],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 8}
+      }
+    },
+    range: [0, 8],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 8}
+    }
+  }],
+  range: [0, 8],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 8}
+  }
+}, {ecmaVersion: 6});
+
+test("module \"foo\" { module() }", {
+  type: "Program",
+  body: [{
+    type: "ModuleDeclaration",
+    id: {
+      type: "Literal",
+      value: "foo",
+      raw: "\"foo\"",
+      range: [7, 12],
+      loc: {
+        start: {line: 1, column: 7},
+        end: {line: 1, column: 12}
+      }
+    },
+    source: null,
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExpressionStatement",
+        expression: {
+          type: "CallExpression",
+          callee: {
+            type: "Identifier",
+            name: "module",
+            range: [15, 21],
+            loc: {
+              start: {line: 1, column: 15},
+              end: {line: 1, column: 21}
+            }
+          },
+          arguments: [],
+          range: [15, 23],
+          loc: {
+            start: {line: 1, column: 15},
+            end: {line: 1, column: 23}
+          }
+        },
+        range: [15, 24],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 24}
+        }
+      }],
+      range: [13, 25],
+      loc: {
+        start: {line: 1, column: 13},
+        end: {line: 1, column: 25}
+      }
+    },
+    range: [0, 25],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 25}
+    }
+  }],
+  range: [0, 25],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 25}
+  }
+}, {ecmaVersion: 6});
+
+// Harmony: Yield Expression
+
+test("(function* () { yield v })", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "FunctionExpression",
+      id: null,
+      params: [],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [{
+          type: "ExpressionStatement",
+          expression: {
+            type: "YieldExpression",
+            argument: {
+              type: "Identifier",
+              name: "v",
+              range: [22, 23],
+              loc: {
+                start: {line: 1, column: 22},
+                end: {line: 1, column: 23}
+              }
+            },
+            delegate: false,
+            range: [16, 23],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 23}
+            }
+          },
+          range: [16, 24],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 24}
+          }
+        }],
+        range: [14, 25],
+        loc: {
+          start: {line: 1, column: 14},
+          end: {line: 1, column: 25}
+        }
+      },
+      rest: null,
+      generator: true,
+      expression: false,
+      range: [1, 25],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 25}
+      }
+    },
+    range: [0, 26],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 26}
+    }
+  }],
+  range: [0, 26],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 26}
+  }
+}, {ecmaVersion: 6});
+
+test("(function* () { yield *v })", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "FunctionExpression",
+      id: null,
+      params: [],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [{
+          type: "ExpressionStatement",
+          expression: {
+            type: "YieldExpression",
+            argument: {
+              type: "Identifier",
+              name: "v",
+              range: [23, 24],
+              loc: {
+                start: {line: 1, column: 23},
+                end: {line: 1, column: 24}
+              }
+            },
+            delegate: true,
+            range: [16, 24],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 24}
+            }
+          },
+          range: [16, 25],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 25}
+          }
+        }],
+        range: [14, 26],
+        loc: {
+          start: {line: 1, column: 14},
+          end: {line: 1, column: 26}
+        }
+      },
+      rest: null,
+      generator: true,
+      expression: false,
+      range: [1, 26],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 26}
+      }
+    },
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+test("function* test () { yield *v }", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "test",
+      range: [10, 14],
+      loc: {
+        start: {line: 1, column: 10},
+        end: {line: 1, column: 14}
+      }
+    },
+    params: [],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [{
+        type: "ExpressionStatement",
+        expression: {
+          type: "YieldExpression",
+          argument: {
+            type: "Identifier",
+            name: "v",
+            range: [27, 28],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 28}
+            }
+          },
+          delegate: true,
+          range: [20, 28],
+          loc: {
+            start: {line: 1, column: 20},
+            end: {line: 1, column: 28}
+          }
+        },
+        range: [20, 29],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 29}
+        }
+      }],
+      range: [18, 30],
+      loc: {
+        start: {line: 1, column: 18},
+        end: {line: 1, column: 30}
+      }
+    },
+    rest: null,
+    generator: true,
+    expression: false,
+    range: [0, 30],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 30}
+    }
+  }],
+  range: [0, 30],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 30}
+  }
+}, {ecmaVersion: 6});
+
+test("var x = { *test () { yield *v } };", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "Identifier",
+        name: "x",
+        range: [4, 5],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 5}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "test",
+            range: [11, 15],
+            loc: {
+              start: {line: 1, column: 11},
+              end: {line: 1, column: 15}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [{
+                type: "ExpressionStatement",
+                expression: {
+                  type: "YieldExpression",
+                  argument: {
+                    type: "Identifier",
+                    name: "v",
+                    range: [28, 29],
+                    loc: {
+                      start: {line: 1, column: 28},
+                      end: {line: 1, column: 29}
+                    }
+                  },
+                  delegate: true,
+                  range: [21, 29],
+                  loc: {
+                    start: {line: 1, column: 21},
+                    end: {line: 1, column: 29}
+                  }
+                },
+                range: [21, 30],
+                loc: {
+                  start: {line: 1, column: 21},
+                  end: {line: 1, column: 30}
+                }
+              }],
+              range: [19, 31],
+              loc: {
+                start: {line: 1, column: 19},
+                end: {line: 1, column: 31}
+              }
+            },
+            rest: null,
+            generator: true,
+            expression: false,
+            range: [19, 31],
+            loc: {
+              start: {line: 1, column: 19},
+              end: {line: 1, column: 31}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: false,
+          range: [10, 31],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 31}
+          }
+        }],
+        range: [8, 33],
+        loc: {
+          start: {line: 1, column: 8},
+          end: {line: 1, column: 33}
+        }
+      },
+      range: [4, 33],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 33}
+      }
+    }],
+    kind: "var",
+    range: [0, 34],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 34}
+    }
+  }],
+  range: [0, 34],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 34}
+  }
+}, {ecmaVersion: 6});
+
+test("function* t() {}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "t",
+      range: [10, 11],
+      loc: {
+        start: {line: 1, column: 10},
+        end: {line: 1, column: 11}
+      }
+    },
+    params: [],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [14, 16],
+      loc: {
+        start: {line: 1, column: 14},
+        end: {line: 1, column: 16}
+      }
+    },
+    rest: null,
+    generator: true,
+    expression: false,
+    range: [0, 16],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 16}
+    }
+  }],
+  range: [0, 16],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 16}
+  },
+  errors: []
+}, {ecmaVersion: 6});
+
+test("(function* () { yield yield 10 })", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "FunctionExpression",
+      id: null,
+      params: [],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [{
+          type: "ExpressionStatement",
+          expression: {
+            type: "YieldExpression",
+            argument: {
+              type: "YieldExpression",
+              argument: {
+                type: "Literal",
+                value: 10,
+                raw: "10",
+                range: [28, 30],
+                loc: {
+                  start: {line: 1, column: 28},
+                  end: {line: 1, column: 30}
+                }
+              },
+              delegate: false,
+              range: [22, 30],
+              loc: {
+                start: {line: 1, column: 22},
+                end: {line: 1, column: 30}
+              }
+            },
+            delegate: false,
+            range: [16, 30],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 30}
+            }
+          },
+          range: [16, 31],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 31}
+          }
+        }],
+        range: [14, 32],
+        loc: {
+          start: {line: 1, column: 14},
+          end: {line: 1, column: 32}
+        }
+      },
+      rest: null,
+      generator: true,
+      expression: false,
+      range: [1, 32],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 32}
+      }
+    },
+    range: [0, 33],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 33}
+    }
+  }],
+  range: [0, 33],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 33}
+  }
+}, {ecmaVersion: 6});
+
+// Harmony: Iterators
+
+test("for(x of list) process(x);", {
+  type: "Program",
+  body: [{
+    type: "ForOfStatement",
+    left: {
+      type: "Identifier",
+      name: "x",
+      range: [4, 5],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 5}
+      }
+    },
+    right: {
+      type: "Identifier",
+      name: "list",
+      range: [9, 13],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 13}
+      }
+    },
+    body: {
+      type: "ExpressionStatement",
+      expression: {
+        type: "CallExpression",
+        callee: {
+          type: "Identifier",
+          name: "process",
+          range: [15, 22],
+          loc: {
+            start: {line: 1, column: 15},
+            end: {line: 1, column: 22}
+          }
+        },
+        arguments: [{
+          type: "Identifier",
+          name: "x",
+          range: [23, 24],
+          loc: {
+            start: {line: 1, column: 23},
+            end: {line: 1, column: 24}
+          }
+        }],
+        range: [15, 25],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 25}
+        }
+      },
+      range: [15, 26],
+      loc: {
+        start: {line: 1, column: 15},
+        end: {line: 1, column: 26}
+      }
+    },
+    range: [0, 26],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 26}
+    }
+  }],
+  range: [0, 26],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 26}
+  }
+}, {ecmaVersion: 6});
+
+test("for (var x of list) process(x);", {
+  type: "Program",
+  body: [{
+    type: "ForOfStatement",
+    left: {
+      type: "VariableDeclaration",
+      declarations: [{
+        type: "VariableDeclarator",
+        id: {
+          type: "Identifier",
+          name: "x",
+          range: [9, 10],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 10}
+          }
+        },
+        init: null,
+        range: [9, 10],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 10}
+        }
+      }],
+      kind: "var",
+      range: [5, 10],
+      loc: {
+        start: {line: 1, column: 5},
+        end: {line: 1, column: 10}
+      }
+    },
+    right: {
+      type: "Identifier",
+      name: "list",
+      range: [14, 18],
+      loc: {
+        start: {line: 1, column: 14},
+        end: {line: 1, column: 18}
+      }
+    },
+    body: {
+      type: "ExpressionStatement",
+      expression: {
+        type: "CallExpression",
+        callee: {
+          type: "Identifier",
+          name: "process",
+          range: [20, 27],
+          loc: {
+            start: {line: 1, column: 20},
+            end: {line: 1, column: 27}
+          }
+        },
+        arguments: [{
+          type: "Identifier",
+          name: "x",
+          range: [28, 29],
+          loc: {
+            start: {line: 1, column: 28},
+            end: {line: 1, column: 29}
+          }
+        }],
+        range: [20, 30],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 30}
+        }
+      },
+      range: [20, 31],
+      loc: {
+        start: {line: 1, column: 20},
+        end: {line: 1, column: 31}
+      }
+    },
+    range: [0, 31],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 31}
+    }
+  }],
+  range: [0, 31],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 31}
+  }
+}, {ecmaVersion: 6});
+
+test("for (var x = 42 of list) process(x);", {
+  type: "Program",
+  body: [{
+    type: "ForOfStatement",
+    left: {
+      type: "VariableDeclaration",
+      declarations: [{
+        type: "VariableDeclarator",
+        id: {
+          type: "Identifier",
+          name: "x",
+          range: [9, 10],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 10}
+          }
+        },
+        init: {
+          type: "Literal",
+          value: 42,
+          raw: "42",
+          range: [13, 15],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 15}
+          }
+        },
+        range: [9, 15],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 15}
+        }
+      }],
+      kind: "var",
+      range: [5, 15],
+      loc: {
+        start: {line: 1, column: 5},
+        end: {line: 1, column: 15}
+      }
+    },
+    right: {
+      type: "Identifier",
+      name: "list",
+      range: [19, 23],
+      loc: {
+        start: {line: 1, column: 19},
+        end: {line: 1, column: 23}
+      }
+    },
+    body: {
+      type: "ExpressionStatement",
+      expression: {
+        type: "CallExpression",
+        callee: {
+          type: "Identifier",
+          name: "process",
+          range: [25, 32],
+          loc: {
+            start: {line: 1, column: 25},
+            end: {line: 1, column: 32}
+          }
+        },
+        arguments: [{
+          type: "Identifier",
+          name: "x",
+          range: [33, 34],
+          loc: {
+            start: {line: 1, column: 33},
+            end: {line: 1, column: 34}
+          }
+        }],
+        range: [25, 35],
+        loc: {
+          start: {line: 1, column: 25},
+          end: {line: 1, column: 35}
+        }
+      },
+      range: [25, 36],
+      loc: {
+        start: {line: 1, column: 25},
+        end: {line: 1, column: 36}
+      }
+    },
+    range: [0, 36],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 36}
+    }
+  }],
+  range: [0, 36],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 36}
+  }
+}, {ecmaVersion: 6});
+
+test("for (let x of list) process(x);", {
+  type: "Program",
+  body: [{
+    type: "ForOfStatement",
+    left: {
+      type: "VariableDeclaration",
+      declarations: [{
+        type: "VariableDeclarator",
+        id: {
+          type: "Identifier",
+          name: "x",
+          range: [9, 10],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 10}
+          }
+        },
+        init: null,
+        range: [9, 10],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 10}
+        }
+      }],
+      kind: "let",
+      range: [5, 10],
+      loc: {
+        start: {line: 1, column: 5},
+        end: {line: 1, column: 10}
+      }
+    },
+    right: {
+      type: "Identifier",
+      name: "list",
+      range: [14, 18],
+      loc: {
+        start: {line: 1, column: 14},
+        end: {line: 1, column: 18}
+      }
+    },
+    body: {
+      type: "ExpressionStatement",
+      expression: {
+        type: "CallExpression",
+        callee: {
+          type: "Identifier",
+          name: "process",
+          range: [20, 27],
+          loc: {
+            start: {line: 1, column: 20},
+            end: {line: 1, column: 27}
+          }
+        },
+        arguments: [{
+          type: "Identifier",
+          name: "x",
+          range: [28, 29],
+          loc: {
+            start: {line: 1, column: 28},
+            end: {line: 1, column: 29}
+          }
+        }],
+        range: [20, 30],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 30}
+        }
+      },
+      range: [20, 31],
+      loc: {
+        start: {line: 1, column: 20},
+        end: {line: 1, column: 31}
+      }
+    },
+    range: [0, 31],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 31}
+    }
+  }],
+  range: [0, 31],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 31}
+  }
+}, {ecmaVersion: 6});
+
+// Harmony: Class (strawman)
+
+test("var A = class extends B {}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "Identifier",
+        name: "A",
+        range: [4, 5],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 5}
+        }
+      },
+      init: {
+        type: "ClassExpression",
+        superClass: {
+          type: "Identifier",
+          name: "B",
+          range: [22, 23],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 23}
+          }
+        },
+        body: {
+          type: "ClassBody",
+          body: [],
+          range: [24, 26],
+          loc: {
+            start: {line: 1, column: 24},
+            end: {line: 1, column: 26}
+          }
+        },
+        range: [8, 26],
+        loc: {
+          start: {line: 1, column: 8},
+          end: {line: 1, column: 26}
+        }
+      },
+      range: [4, 26],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 26}
+      }
+    }],
+    kind: "var",
+    range: [0, 26],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 26}
+    }
+  }],
+  range: [0, 26],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 26}
+  }
+}, {ecmaVersion: 6});
+
+test("class A extends class B extends C {} {}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: {
+      type: "ClassExpression",
+      id: {
+        type: "Identifier",
+        name: "B",
+        range: [22, 23],
+        loc: {
+          start: {line: 1, column: 22},
+          end: {line: 1, column: 23}
+        }
+      },
+      superClass: {
+        type: "Identifier",
+        name: "C",
+        range: [32, 33],
+        loc: {
+          start: {line: 1, column: 32},
+          end: {line: 1, column: 33}
+        }
+      },
+      body: {
+        type: "ClassBody",
+        body: [],
+        range: [34, 36],
+        loc: {
+          start: {line: 1, column: 34},
+          end: {line: 1, column: 36}
+        }
+      },
+      range: [16, 36],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 36}
+      }
+    },
+    body: {
+      type: "ClassBody",
+      body: [],
+      range: [37, 39],
+      loc: {
+        start: {line: 1, column: 37},
+        end: {line: 1, column: 39}
+      }
+    },
+    range: [0, 39],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 39}
+    }
+  }],
+  range: [0, 39],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 39}
+  }
+}, {ecmaVersion: 6});
+
+test("class A {get() {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "get",
+          range: [9, 12],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 12}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [15, 17],
+            loc: {
+              start: {line: 1, column: 15},
+              end: {line: 1, column: 17}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [15, 17],
+          loc: {
+            start: {line: 1, column: 15},
+            end: {line: 1, column: 17}
+          }
+        },
+        kind: "",
+        static: false,
+        range: [9, 17],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 17}
+        }
+      }],
+      range: [8, 18],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 18}
+      }
+    },
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { static get() {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "get",
+          range: [17, 20],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 20}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [23, 25],
+            loc: {
+              start: {line: 1, column: 23},
+              end: {line: 1, column: 25}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [23, 25],
+          loc: {
+            start: {line: 1, column: 23},
+            end: {line: 1, column: 25}
+          }
+        },
+        kind: "",
+        static: true,
+        range: [10, 25],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 25}
+        }
+      }],
+      range: [8, 26],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 26}
+      }
+    },
+    range: [0, 26],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 26}
+    }
+  }],
+  range: [0, 26],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 26}
+  }
+}, {ecmaVersion: 6});
+
+test("class A extends B {get foo() {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: {
+      type: "Identifier",
+      name: "B",
+      range: [16, 17],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 17}
+      }
+    },
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "foo",
+          range: [23, 26],
+          loc: {
+            start: {line: 1, column: 23},
+            end: {line: 1, column: 26}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [29, 31],
+            loc: {
+              start: {line: 1, column: 29},
+              end: {line: 1, column: 31}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [29, 31],
+          loc: {
+            start: {line: 1, column: 29},
+            end: {line: 1, column: 31}
+          }
+        },
+        kind: "get",
+        static: false,
+        range: [19, 31],
+        loc: {
+          start: {line: 1, column: 19},
+          end: {line: 1, column: 31}
+        }
+      }],
+      range: [18, 32],
+      loc: {
+        start: {line: 1, column: 18},
+        end: {line: 1, column: 32}
+      }
+    },
+    range: [0, 32],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 32}
+    }
+  }],
+  range: [0, 32],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 32}
+  }
+}, {ecmaVersion: 6});
+
+test("class A extends B { static get foo() {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: {
+      type: "Identifier",
+      name: "B",
+      range: [16, 17],
+      loc: {
+        start: {line: 1, column: 16},
+        end: {line: 1, column: 17}
+      }
+    },
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "foo",
+          range: [31, 34],
+          loc: {
+            start: {line: 1, column: 31},
+            end: {line: 1, column: 34}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [37, 39],
+            loc: {
+              start: {line: 1, column: 37},
+              end: {line: 1, column: 39}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [37, 39],
+          loc: {
+            start: {line: 1, column: 37},
+            end: {line: 1, column: 39}
+          }
+        },
+        kind: "get",
+        static: true,
+        range: [20, 39],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 39}
+        }
+      }],
+      range: [18, 40],
+      loc: {
+        start: {line: 1, column: 18},
+        end: {line: 1, column: 40}
+      }
+    },
+    range: [0, 40],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 40}
+    }
+  }],
+  range: [0, 40],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 40}
+  }
+}, {ecmaVersion: 6});
+
+test("class A {set a(v) {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "a",
+          range: [13, 14],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 14}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "Identifier",
+            name: "v",
+            range: [15, 16],
+            loc: {
+              start: {line: 1, column: 15},
+              end: {line: 1, column: 16}
+            }
+          }],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [18, 20],
+            loc: {
+              start: {line: 1, column: 18},
+              end: {line: 1, column: 20}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [18, 20],
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 20}
+          }
+        },
+        kind: "set",
+        static: false,
+        range: [9, 20],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 20}
+        }
+      }],
+      range: [8, 21],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 21}
+      }
+    },
+    range: [0, 21],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 21}
+    }
+  }],
+  range: [0, 21],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 21}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { static set a(v) {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "a",
+          range: [21, 22],
+          loc: {
+            start: {line: 1, column: 21},
+            end: {line: 1, column: 22}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "Identifier",
+            name: "v",
+            range: [23, 24],
+            loc: {
+              start: {line: 1, column: 23},
+              end: {line: 1, column: 24}
+            }
+          }],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [26, 28],
+            loc: {
+              start: {line: 1, column: 26},
+              end: {line: 1, column: 28}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [26, 28],
+          loc: {
+            start: {line: 1, column: 26},
+            end: {line: 1, column: 28}
+          }
+        },
+        kind: "set",
+        static: true,
+        range: [10, 28],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 28}
+        }
+      }],
+      range: [8, 29],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 29}
+      }
+    },
+    range: [0, 29],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 29}
+    }
+  }],
+  range: [0, 29],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 29}
+  }
+}, {ecmaVersion: 6});
+
+test("class A {set(v) {};}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "set",
+          range: [9, 12],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 12}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "Identifier",
+            name: "v",
+            range: [13, 14],
+            loc: {
+              start: {line: 1, column: 13},
+              end: {line: 1, column: 14}
+            }
+          }],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [16, 18],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 18}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [16, 18],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 18}
+          }
+        },
+        kind: "",
+        static: false,
+        range: [9, 18],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 18}
+        }
+      }],
+      range: [8, 20],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 20}
+      }
+    },
+    range: [0, 20],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 20}
+    }
+  }],
+  range: [0, 20],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 20}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { static set(v) {};}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "set",
+          range: [17, 20],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 20}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "Identifier",
+            name: "v",
+            range: [21, 22],
+            loc: {
+              start: {line: 1, column: 21},
+              end: {line: 1, column: 22}
+            }
+          }],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [24, 26],
+            loc: {
+              start: {line: 1, column: 24},
+              end: {line: 1, column: 26}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [24, 26],
+          loc: {
+            start: {line: 1, column: 24},
+            end: {line: 1, column: 26}
+          }
+        },
+        kind: "",
+        static: true,
+        range: [10, 26],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 26}
+        }
+      }],
+      range: [8, 28],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 28}
+      }
+    },
+    range: [0, 28],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 28}
+    }
+  }],
+  range: [0, 28],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 28}
+  }
+}, {ecmaVersion: 6});
+
+test("class A {*gen(v) { yield v; }}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "gen",
+          range: [10, 13],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 13}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "Identifier",
+            name: "v",
+            range: [14, 15],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 15}
+            }
+          }],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [{
+              type: "ExpressionStatement",
+              expression: {
+                type: "YieldExpression",
+                argument: {
+                  type: "Identifier",
+                  name: "v",
+                  range: [25, 26],
+                  loc: {
+                    start: {line: 1, column: 25},
+                    end: {line: 1, column: 26}
+                  }
+                },
+                delegate: false,
+                range: [19, 26],
+                loc: {
+                  start: {line: 1, column: 19},
+                  end: {line: 1, column: 26}
+                }
+              },
+              range: [19, 27],
+              loc: {
+                start: {line: 1, column: 19},
+                end: {line: 1, column: 27}
+              }
+            }],
+            range: [17, 29],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 29}
+            }
+          },
+          rest: null,
+          generator: true,
+          expression: false,
+          range: [17, 29],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 29}
+          }
+        },
+        kind: "",
+        static: false,
+        range: [9, 29],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 29}
+        }
+      }],
+      range: [8, 30],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 30}
+      }
+    },
+    range: [0, 30],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 30}
+    }
+  }],
+  range: [0, 30],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 30}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { static *gen(v) { yield v; }}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "gen",
+          range: [18, 21],
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 21}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "Identifier",
+            name: "v",
+            range: [22, 23],
+            loc: {
+              start: {line: 1, column: 22},
+              end: {line: 1, column: 23}
+            }
+          }],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [{
+              type: "ExpressionStatement",
+              expression: {
+                type: "YieldExpression",
+                argument: {
+                  type: "Identifier",
+                  name: "v",
+                  range: [33, 34],
+                  loc: {
+                    start: {line: 1, column: 33},
+                    end: {line: 1, column: 34}
+                  }
+                },
+                delegate: false,
+                range: [27, 34],
+                loc: {
+                  start: {line: 1, column: 27},
+                  end: {line: 1, column: 34}
+                }
+              },
+              range: [27, 35],
+              loc: {
+                start: {line: 1, column: 27},
+                end: {line: 1, column: 35}
+              }
+            }],
+            range: [25, 37],
+            loc: {
+              start: {line: 1, column: 25},
+              end: {line: 1, column: 37}
+            }
+          },
+          rest: null,
+          generator: true,
+          expression: false,
+          range: [25, 37],
+          loc: {
+            start: {line: 1, column: 25},
+            end: {line: 1, column: 37}
+          }
+        },
+        kind: "",
+        static: true,
+        range: [10, 37],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 37}
+        }
+      }],
+      range: [8, 38],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 38}
+      }
+    },
+    range: [0, 38],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 38}
+    }
+  }],
+  range: [0, 38],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 38}
+  }
+}, {ecmaVersion: 6});
+
+test("\"use strict\"; (class A {constructor() { super() }})", {
+  type: "Program",
+  body: [
+    {
+      type: "ExpressionStatement",
+      expression: {
+        type: "Literal",
+        value: "use strict",
+        raw: "\"use strict\"",
+        range: [0, 12],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 12}
+        }
+      },
+      range: [0, 13],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 13}
+      }
+    },
+    {
+      type: "ExpressionStatement",
+      expression: {
+        type: "ClassExpression",
+        id: {
+          type: "Identifier",
+          name: "A",
+          range: [21, 22],
+          loc: {
+            start: {line: 1, column: 21},
+            end: {line: 1, column: 22}
+          }
+        },
+        superClass: null,
+        body: {
+          type: "ClassBody",
+          body: [{
+            type: "MethodDefinition",
+            key: {
+              type: "Identifier",
+              name: "constructor",
+              range: [24, 35],
+              loc: {
+                start: {line: 1, column: 24},
+                end: {line: 1, column: 35}
+              }
+            },
+            value: {
+              type: "FunctionExpression",
+              id: null,
+              params: [],
+              defaults: [],
+              body: {
+                type: "BlockStatement",
+                body: [{
+                  type: "ExpressionStatement",
+                  expression: {
+                    type: "CallExpression",
+                    callee: {
+                      type: "Identifier",
+                      name: "super",
+                      range: [40, 45],
+                      loc: {
+                        start: {line: 1, column: 40},
+                        end: {line: 1, column: 45}
+                      }
+                    },
+                    arguments: [],
+                    range: [40, 47],
+                    loc: {
+                      start: {line: 1, column: 40},
+                      end: {line: 1, column: 47}
+                    }
+                  },
+                  range: [40, 48],
+                  loc: {
+                    start: {line: 1, column: 40},
+                    end: {line: 1, column: 48}
+                  }
+                }],
+                range: [38, 49],
+                loc: {
+                  start: {line: 1, column: 38},
+                  end: {line: 1, column: 49}
+                }
+              },
+              rest: null,
+              generator: false,
+              expression: false,
+              range: [38, 49],
+              loc: {
+                start: {line: 1, column: 38},
+                end: {line: 1, column: 49}
+              }
+            },
+            kind: "",
+            static: false,
+            range: [24, 49],
+            loc: {
+              start: {line: 1, column: 24},
+              end: {line: 1, column: 49}
+            }
+          }],
+          range: [23, 50],
+          loc: {
+            start: {line: 1, column: 23},
+            end: {line: 1, column: 50}
+          }
+        },
+        range: [15, 50],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 50}
+        }
+      },
+      range: [14, 51],
+      loc: {
+        start: {line: 1, column: 14},
+        end: {line: 1, column: 51}
+      }
+    }
+  ],
+  range: [0, 51],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 51}
+  },
+  comments: []
+}, {ecmaVersion: 6});
+
+test("class A {static foo() {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [{
+        type: "MethodDefinition",
+        key: {
+          type: "Identifier",
+          name: "foo",
+          range: [16, 19],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 19}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [22, 24],
+            loc: {
+              start: {line: 1, column: 22},
+              end: {line: 1, column: 24}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [22, 24],
+          loc: {
+            start: {line: 1, column: 22},
+            end: {line: 1, column: 24}
+          }
+        },
+        kind: "",
+        static: true,
+        range: [9, 24],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 24}
+        }
+      }],
+      range: [8, 25],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 25}
+      }
+    },
+    range: [0, 25],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 25}
+    }
+  }],
+  range: [0, 25],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 25}
+  }
+}, {ecmaVersion: 6});
+
+test("class A {foo() {} static bar() {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [9, 12],
+            loc: {
+              start: {line: 1, column: 9},
+              end: {line: 1, column: 12}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [15, 17],
+              loc: {
+                start: {line: 1, column: 15},
+                end: {line: 1, column: 17}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [15, 17],
+            loc: {
+              start: {line: 1, column: 15},
+              end: {line: 1, column: 17}
+            }
+          },
+          kind: "",
+          static: false,
+          range: [9, 17],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 17}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "bar",
+            range: [25, 28],
+            loc: {
+              start: {line: 1, column: 25},
+              end: {line: 1, column: 28}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [31, 33],
+              loc: {
+                start: {line: 1, column: 31},
+                end: {line: 1, column: 33}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [31, 33],
+            loc: {
+              start: {line: 1, column: 31},
+              end: {line: 1, column: 33}
+            }
+          },
+          kind: "",
+          static: true,
+          range: [18, 33],
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 33}
+          }
+        }
+      ],
+      range: [8, 34],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 34}
+      }
+    },
+    range: [0, 34],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 34}
+    }
+  }],
+  range: [0, 34],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 34}
+  }
+}, {ecmaVersion: 6});
+
+test("\"use strict\"; (class A { static constructor() { super() }})", {
+  type: "Program",
+  body: [
+    {
+      type: "ExpressionStatement",
+      expression: {
+        type: "Literal",
+        value: "use strict",
+        raw: "\"use strict\"",
+        range: [0, 12],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 12}
+        }
+      },
+      range: [0, 13],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 13}
+      }
+    },
+    {
+      type: "ExpressionStatement",
+      expression: {
+        type: "ClassExpression",
+        id: {
+          type: "Identifier",
+          name: "A",
+          range: [21, 22],
+          loc: {
+            start: {line: 1, column: 21},
+            end: {line: 1, column: 22}
+          }
+        },
+        superClass: null,
+        body: {
+          type: "ClassBody",
+          body: [{
+            type: "MethodDefinition",
+            key: {
+              type: "Identifier",
+              name: "constructor",
+              range: [32, 43],
+              loc: {
+                start: {line: 1, column: 32},
+                end: {line: 1, column: 43}
+              }
+            },
+            value: {
+              type: "FunctionExpression",
+              id: null,
+              params: [],
+              defaults: [],
+              body: {
+                type: "BlockStatement",
+                body: [{
+                  type: "ExpressionStatement",
+                  expression: {
+                    type: "CallExpression",
+                    callee: {
+                      type: "Identifier",
+                      name: "super",
+                      range: [48, 53],
+                      loc: {
+                        start: {line: 1, column: 48},
+                        end: {line: 1, column: 53}
+                      }
+                    },
+                    arguments: [],
+                    range: [48, 55],
+                    loc: {
+                      start: {line: 1, column: 48},
+                      end: {line: 1, column: 55}
+                    }
+                  },
+                  range: [48, 56],
+                  loc: {
+                    start: {line: 1, column: 48},
+                    end: {line: 1, column: 56}
+                  }
+                }],
+                range: [46, 57],
+                loc: {
+                  start: {line: 1, column: 46},
+                  end: {line: 1, column: 57}
+                }
+              },
+              rest: null,
+              generator: false,
+              expression: false,
+              range: [46, 57],
+              loc: {
+                start: {line: 1, column: 46},
+                end: {line: 1, column: 57}
+              }
+            },
+            kind: "",
+            static: true,
+            range: [25, 57],
+            loc: {
+              start: {line: 1, column: 25},
+              end: {line: 1, column: 57}
+            }
+          }],
+          range: [23, 58],
+          loc: {
+            start: {line: 1, column: 23},
+            end: {line: 1, column: 58}
+          }
+        },
+        range: [15, 58],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 58}
+        }
+      },
+      range: [14, 59],
+      loc: {
+        start: {line: 1, column: 14},
+        end: {line: 1, column: 59}
+      }
+    }
+  ],
+  range: [0, 59],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 59}
+  },
+  comments: []
+}, {ecmaVersion: 6});
+
+test("class A { foo() {} bar() {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [10, 13],
+            loc: {
+              start: {line: 1, column: 10},
+              end: {line: 1, column: 13}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [16, 18],
+              loc: {
+                start: {line: 1, column: 16},
+                end: {line: 1, column: 18}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [16, 18],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 18}
+            }
+          },
+          kind: "",
+          static: false,
+          range: [10, 18],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 18}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "bar",
+            range: [19, 22],
+            loc: {
+              start: {line: 1, column: 19},
+              end: {line: 1, column: 22}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [25, 27],
+              loc: {
+                start: {line: 1, column: 25},
+                end: {line: 1, column: 27}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [25, 27],
+            loc: {
+              start: {line: 1, column: 25},
+              end: {line: 1, column: 27}
+            }
+          },
+          kind: "",
+          static: false,
+          range: [19, 27],
+          loc: {
+            start: {line: 1, column: 19},
+            end: {line: 1, column: 27}
+          }
+        }
+      ],
+      range: [8, 28],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 28}
+      }
+    },
+    range: [0, 28],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 28}
+    }
+  }],
+  range: [0, 28],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 28}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { get foo() {} set foo(v) {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [14, 17],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 17}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [20, 22],
+              loc: {
+                start: {line: 1, column: 20},
+                end: {line: 1, column: 22}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [20, 22],
+            loc: {
+              start: {line: 1, column: 20},
+              end: {line: 1, column: 22}
+            }
+          },
+          kind: "get",
+          static: false,
+          range: [10, 22],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 22}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [27, 30],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 30}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "v",
+              range: [31, 32],
+              loc: {
+                start: {line: 1, column: 31},
+                end: {line: 1, column: 32}
+              }
+            }],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [34, 36],
+              loc: {
+                start: {line: 1, column: 34},
+                end: {line: 1, column: 36}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [34, 36],
+            loc: {
+              start: {line: 1, column: 34},
+              end: {line: 1, column: 36}
+            }
+          },
+          kind: "set",
+          static: false,
+          range: [23, 36],
+          loc: {
+            start: {line: 1, column: 23},
+            end: {line: 1, column: 36}
+          }
+        }
+      ],
+      range: [8, 37],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 37}
+      }
+    },
+    range: [0, 37],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 37}
+    }
+  }],
+  range: [0, 37],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 37}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { static get foo() {} get foo() {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [21, 24],
+            loc: {
+              start: {line: 1, column: 21},
+              end: {line: 1, column: 24}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [27, 29],
+              loc: {
+                start: {line: 1, column: 27},
+                end: {line: 1, column: 29}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [27, 29],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 29}
+            }
+          },
+          kind: "get",
+          static: true,
+          range: [10, 29],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 29}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [34, 37],
+            loc: {
+              start: {line: 1, column: 34},
+              end: {line: 1, column: 37}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [40, 42],
+              loc: {
+                start: {line: 1, column: 40},
+                end: {line: 1, column: 42}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [40, 42],
+            loc: {
+              start: {line: 1, column: 40},
+              end: {line: 1, column: 42}
+            }
+          },
+          kind: "get",
+          static: false,
+          range: [30, 42],
+          loc: {
+            start: {line: 1, column: 30},
+            end: {line: 1, column: 42}
+          }
+        }
+      ],
+      range: [8, 43],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 43}
+      }
+    },
+    range: [0, 43],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 43}
+    }
+  }],
+  range: [0, 43],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 43}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { static get foo() {} static get bar() {} }", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [21, 24],
+            loc: {
+              start: {line: 1, column: 21},
+              end: {line: 1, column: 24}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [27, 29],
+              loc: {
+                start: {line: 1, column: 27},
+                end: {line: 1, column: 29}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [27, 29],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 29}
+            }
+          },
+          kind: "get",
+          static: true,
+          range: [10, 29],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 29}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "bar",
+            range: [41, 44],
+            loc: {
+              start: {line: 1, column: 41},
+              end: {line: 1, column: 44}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [47, 49],
+              loc: {
+                start: {line: 1, column: 47},
+                end: {line: 1, column: 49}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [47, 49],
+            loc: {
+              start: {line: 1, column: 47},
+              end: {line: 1, column: 49}
+            }
+          },
+          kind: "get",
+          static: true,
+          range: [30, 49],
+          loc: {
+            start: {line: 1, column: 30},
+            end: {line: 1, column: 49}
+          }
+        }
+      ],
+      range: [8, 51],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 51}
+      }
+    },
+    range: [0, 51],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 51}
+    }
+  }],
+  range: [0, 51],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 51}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { static get foo() {} static set foo(v) {} get foo() {} set foo(v) {}}", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [21, 24],
+            loc: {
+              start: {line: 1, column: 21},
+              end: {line: 1, column: 24}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [27, 29],
+              loc: {
+                start: {line: 1, column: 27},
+                end: {line: 1, column: 29}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [27, 29],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 29}
+            }
+          },
+          kind: "get",
+          static: true,
+          range: [10, 29],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 29}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [41, 44],
+            loc: {
+              start: {line: 1, column: 41},
+              end: {line: 1, column: 44}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "v",
+              range: [45, 46],
+              loc: {
+                start: {line: 1, column: 45},
+                end: {line: 1, column: 46}
+              }
+            }],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [48, 50],
+              loc: {
+                start: {line: 1, column: 48},
+                end: {line: 1, column: 50}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [48, 50],
+            loc: {
+              start: {line: 1, column: 48},
+              end: {line: 1, column: 50}
+            }
+          },
+          kind: "set",
+          static: true,
+          range: [30, 50],
+          loc: {
+            start: {line: 1, column: 30},
+            end: {line: 1, column: 50}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [55, 58],
+            loc: {
+              start: {line: 1, column: 55},
+              end: {line: 1, column: 58}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [61, 63],
+              loc: {
+                start: {line: 1, column: 61},
+                end: {line: 1, column: 63}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [61, 63],
+            loc: {
+              start: {line: 1, column: 61},
+              end: {line: 1, column: 63}
+            }
+          },
+          kind: "get",
+          static: false,
+          range: [51, 63],
+          loc: {
+            start: {line: 1, column: 51},
+            end: {line: 1, column: 63}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [68, 71],
+            loc: {
+              start: {line: 1, column: 68},
+              end: {line: 1, column: 71}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "v",
+              range: [72, 73],
+              loc: {
+                start: {line: 1, column: 72},
+                end: {line: 1, column: 73}
+              }
+            }],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [75, 77],
+              loc: {
+                start: {line: 1, column: 75},
+                end: {line: 1, column: 77}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [75, 77],
+            loc: {
+              start: {line: 1, column: 75},
+              end: {line: 1, column: 77}
+            }
+          },
+          kind: "set",
+          static: false,
+          range: [64, 77],
+          loc: {
+            start: {line: 1, column: 64},
+            end: {line: 1, column: 77}
+          }
+        }
+      ],
+      range: [8, 78],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 78}
+      }
+    },
+    range: [0, 78],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 78}
+    }
+  }],
+  range: [0, 78],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 78}
+  }
+}, {ecmaVersion: 6});
+
+test("class A { set foo(v) {} get foo() {} }", {
+  type: "Program",
+  body: [{
+    type: "ClassDeclaration",
+    id: {
+      type: "Identifier",
+      name: "A",
+      range: [6, 7],
+      loc: {
+        start: {line: 1, column: 6},
+        end: {line: 1, column: 7}
+      }
+    },
+    superClass: null,
+    body: {
+      type: "ClassBody",
+      body: [
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [14, 17],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 17}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "v",
+              range: [18, 19],
+              loc: {
+                start: {line: 1, column: 18},
+                end: {line: 1, column: 19}
+              }
+            }],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [21, 23],
+              loc: {
+                start: {line: 1, column: 21},
+                end: {line: 1, column: 23}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [21, 23],
+            loc: {
+              start: {line: 1, column: 21},
+              end: {line: 1, column: 23}
+            }
+          },
+          kind: "set",
+          static: false,
+          range: [10, 23],
+          loc: {
+            start: {line: 1, column: 10},
+            end: {line: 1, column: 23}
+          }
+        },
+        {
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "foo",
+            range: [28, 31],
+            loc: {
+              start: {line: 1, column: 28},
+              end: {line: 1, column: 31}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [34, 36],
+              loc: {
+                start: {line: 1, column: 34},
+                end: {line: 1, column: 36}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [34, 36],
+            loc: {
+              start: {line: 1, column: 34},
+              end: {line: 1, column: 36}
+            }
+          },
+          kind: "get",
+          static: false,
+          range: [24, 36],
+          loc: {
+            start: {line: 1, column: 24},
+            end: {line: 1, column: 36}
+          }
+        }
+      ],
+      range: [8, 38],
+      loc: {
+        start: {line: 1, column: 8},
+        end: {line: 1, column: 38}
+      }
+    },
+    range: [0, 38],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 38}
+    }
+  }],
+  range: [0, 38],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 38}
+  }
+}, {ecmaVersion: 6});
+
+testFail("class A { get foo() {} get foo() {} }", "Unexpected token (1:31)", {ecmaVersion: 6});
+
+testFail("class A { set foo(v) {} set foo(v) {} }", "Unexpected token (1:32)", {ecmaVersion: 6});
+
+testFail("class A { get foo() {} foo() {} }", "Unexpected token (1:27)", {ecmaVersion: 6});
+
+testFail("class A { foo() {} get foo() {} }", "Unexpected token (1:27)", {ecmaVersion: 6});
+
+testFail("class A { set foo(v) {} foo() {} }", "Unexpected token (1:28)", {ecmaVersion: 6});
+
+testFail("class A { foo() {} set foo(v) {} }", "Unexpected token (1:27)", {ecmaVersion: 6});
+
+// ES6: Computed Properties
+
+test("({[x]: 10})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        },
+        value: {
+          type: "Literal",
+          value: 10,
+          raw: "10",
+          range: [7, 9],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 9}
+          }
+        },
+        kind: "init",
+        method: false,
+        shorthand: false,
+        computed: true,
+        range: [2, 9],
+        loc: {
+          start: {line: 1, column: 2},
+          end: {line: 1, column: 9}
+        }
+      }],
+      range: [1, 10],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 10}
+      }
+    },
+    range: [0, 11],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 11}
+    }
+  }],
+  range: [0, 11],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 11}
+  }
+}, {ecmaVersion: 6});
+
+test("({[\"x\" + \"y\"]: 10})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "BinaryExpression",
+          operator: "+",
+          left: {
+            type: "Literal",
+            value: "x",
+            raw: "\"x\"",
+            range: [3, 6],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 6}
+            }
+          },
+          right: {
+            type: "Literal",
+            value: "y",
+            raw: "\"y\"",
+            range: [9, 12],
+            loc: {
+              start: {line: 1, column: 9},
+              end: {line: 1, column: 12}
+            }
+          },
+          range: [3, 12],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 12}
+          }
+        },
+        value: {
+          type: "Literal",
+          value: 10,
+          raw: "10",
+          range: [15, 17],
+          loc: {
+            start: {line: 1, column: 15},
+            end: {line: 1, column: 17}
+          }
+        },
+        kind: "init",
+        method: false,
+        shorthand: false,
+        computed: true,
+        range: [2, 17],
+        loc: {
+          start: {line: 1, column: 2},
+          end: {line: 1, column: 17}
+        }
+      }],
+      range: [1, 18],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 18}
+      }
+    },
+    range: [0, 19],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 19}
+    }
+  }],
+  range: [0, 19],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 19}
+  }
+}, {ecmaVersion: 6});
+
+test("({[x]: function() {}})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [18, 20],
+            loc: {
+              start: {line: 1, column: 18},
+              end: {line: 1, column: 20}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [7, 20],
+          loc: {
+            start: {line: 1, column: 7},
+            end: {line: 1, column: 20}
+          }
+        },
+        kind: "init",
+        method: false,
+        shorthand: false,
+        computed: true,
+        range: [2, 20],
+        loc: {
+          start: {line: 1, column: 2},
+          end: {line: 1, column: 20}
+        }
+      }],
+      range: [1, 21],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 21}
+      }
+    },
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("({[x]: 10, y: 20})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [
+        {
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "x",
+            range: [3, 4],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 4}
+            }
+          },
+          value: {
+            type: "Literal",
+            value: 10,
+            raw: "10",
+            range: [7, 9],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 9}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: true,
+          range: [2, 9],
+          loc: {
+            start: {line: 1, column: 2},
+            end: {line: 1, column: 9}
+          }
+        },
+        {
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "y",
+            range: [11, 12],
+            loc: {
+              start: {line: 1, column: 11},
+              end: {line: 1, column: 12}
+            }
+          },
+          value: {
+            type: "Literal",
+            value: 20,
+            raw: "20",
+            range: [14, 16],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 16}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [11, 16],
+          loc: {
+            start: {line: 1, column: 11},
+            end: {line: 1, column: 16}
+          }
+        }
+      ],
+      range: [1, 17],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("({get [x]() {}, set [x](v) {}})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [
+        {
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "x",
+            range: [7, 8],
+            loc: {
+              start: {line: 1, column: 7},
+              end: {line: 1, column: 8}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [12, 14],
+              loc: {
+                start: {line: 1, column: 12},
+                end: {line: 1, column: 14}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [12, 14],
+            loc: {
+              start: {line: 1, column: 12},
+              end: {line: 1, column: 14}
+            }
+          },
+          kind: "get",
+          method: false,
+          shorthand: false,
+          computed: true,
+          range: [2, 14],
+          loc: {
+            start: {line: 1, column: 2},
+            end: {line: 1, column: 14}
+          }
+        },
+        {
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "x",
+            range: [21, 22],
+            loc: {
+              start: {line: 1, column: 21},
+              end: {line: 1, column: 22}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "v",
+              range: [24, 25],
+              loc: {
+                start: {line: 1, column: 24},
+                end: {line: 1, column: 25}
+              }
+            }],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [27, 29],
+              loc: {
+                start: {line: 1, column: 27},
+                end: {line: 1, column: 29}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [27, 29],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 29}
+            }
+          },
+          kind: "set",
+          method: false,
+          shorthand: false,
+          computed: true,
+          range: [16, 29],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 29}
+          }
+        }
+      ],
+      range: [1, 30],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 30}
+      }
+    },
+    range: [0, 31],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 31}
+    }
+  }],
+  range: [0, 31],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 31}
+  }
+}, {ecmaVersion: 6});
+
+test("({[x]() {}})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [8, 10],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 10}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [8, 10],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 10}
+          }
+        },
+        kind: "init",
+        method: true,
+        shorthand: false,
+        computed: true,
+        range: [2, 10],
+        loc: {
+          start: {line: 1, column: 2},
+          end: {line: 1, column: 10}
+        }
+      }],
+      range: [1, 11],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 11}
+      }
+    },
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("var {[x]: y} = {y}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "x",
+            range: [6, 7],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 7}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "y",
+            range: [10, 11],
+            loc: {
+              start: {line: 1, column: 10},
+              end: {line: 1, column: 11}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: true,
+          range: [5, 11],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 11}
+          }
+        }],
+        range: [4, 12],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 12}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "y",
+            range: [16, 17],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 17}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "y",
+            range: [16, 17],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 17}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [16, 17],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 17}
+          }
+        }],
+        range: [15, 18],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 18}
+        }
+      },
+      range: [4, 18],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 18}
+      }
+    }],
+    kind: "var",
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("function f({[x]: y}) {}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "f",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [{
+      type: "ObjectPattern",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [13, 14],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 14}
+          }
+        },
+        value: {
+          type: "Identifier",
+          name: "y",
+          range: [17, 18],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 18}
+          }
+        },
+        kind: "init",
+        method: false,
+        shorthand: false,
+        computed: true,
+        range: [12, 18],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 18}
+        }
+      }],
+      range: [11, 19],
+      loc: {
+        start: {line: 1, column: 11},
+        end: {line: 1, column: 19}
+      }
+    }],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [21, 23],
+      loc: {
+        start: {line: 1, column: 21},
+        end: {line: 1, column: 23}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 23],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 23}
+    }
+  }],
+  range: [0, 23],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 23}
+  }
+}, {ecmaVersion: 6});
+
+test("var x = {*[test]() { yield *v; }}", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "Identifier",
+        name: "x",
+        range: [4, 5],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 5}
+        }
+      },
+      init: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "test",
+            range: [11, 15],
+            loc: {
+              start: {line: 1, column: 11},
+              end: {line: 1, column: 15}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [],
+            defaults: [],
+            body: {
+              type: "BlockStatement",
+              body: [{
+                type: "ExpressionStatement",
+                expression: {
+                  type: "YieldExpression",
+                  argument: {
+                    type: "Identifier",
+                    name: "v",
+                    range: [28, 29],
+                    loc: {
+                      start: {line: 1, column: 28},
+                      end: {line: 1, column: 29}
+                    }
+                  },
+                  delegate: true,
+                  range: [21, 29],
+                  loc: {
+                    start: {line: 1, column: 21},
+                    end: {line: 1, column: 29}
+                  }
+                },
+                range: [21, 30],
+                loc: {
+                  start: {line: 1, column: 21},
+                  end: {line: 1, column: 30}
+                }
+              }],
+              range: [19, 32],
+              loc: {
+                start: {line: 1, column: 19},
+                end: {line: 1, column: 32}
+              }
+            },
+            rest: null,
+            generator: true,
+            expression: false,
+            range: [19, 32],
+            loc: {
+              start: {line: 1, column: 19},
+              end: {line: 1, column: 32}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: true,
+          range: [9, 32],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 32}
+          }
+        }],
+        range: [8, 33],
+        loc: {
+          start: {line: 1, column: 8},
+          end: {line: 1, column: 33}
+        }
+      },
+      range: [4, 33],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 33}
+      }
+    }],
+    kind: "var",
+    range: [0, 33],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 33}
+    }
+  }],
+  range: [0, 33],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 33}
+  }
+}, {ecmaVersion: 6});
+
+testFail("({[x]})", "Unexpected token (1:6)", {ecmaVersion: 6});
+
+// ES6: Default parameters
+
+test("function f([x] = [1]) {}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "f",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [{
+      type: "ArrayPattern",
+      elements: [{
+        type: "Identifier",
+        name: "x",
+        range: [12, 13],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 13}
+        }
+      }],
+      range: [11, 14],
+      loc: {
+        start: {line: 1, column: 11},
+        end: {line: 1, column: 14}
+      }
+    }],
+    defaults: [{
+      type: "ArrayExpression",
+      elements: [{
+        type: "Literal",
+        value: 1,
+        raw: "1",
+        range: [18, 19],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 19}
+        }
+      }],
+      range: [17, 20],
+      loc: {
+        start: {line: 1, column: 17},
+        end: {line: 1, column: 20}
+      }
+    }],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [22, 24],
+      loc: {
+        start: {line: 1, column: 22},
+        end: {line: 1, column: 24}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 24],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 24}
+    }
+  }],
+  range: [0, 24],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 24}
+  }
+}, {ecmaVersion: 6});
+
+test("function f({x} = {x: 10}) {}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "f",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [{
+      type: "ObjectPattern",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [12, 13],
+          loc: {
+            start: {line: 1, column: 12},
+            end: {line: 1, column: 13}
+          }
+        },
+        value: {
+          type: "Identifier",
+          name: "x",
+          range: [12, 13],
+          loc: {
+            start: {line: 1, column: 12},
+            end: {line: 1, column: 13}
+          }
+        },
+        kind: "init",
+        method: false,
+        shorthand: true,
+        computed: false,
+        range: [12, 13],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 13}
+        }
+      }],
+      range: [11, 14],
+      loc: {
+        start: {line: 1, column: 11},
+        end: {line: 1, column: 14}
+      }
+    }],
+    defaults: [{
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [18, 19],
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 19}
+          }
+        },
+        value: {
+          type: "Literal",
+          value: 10,
+          raw: "10",
+          range: [21, 23],
+          loc: {
+            start: {line: 1, column: 21},
+            end: {line: 1, column: 23}
+          }
+        },
+        kind: "init",
+        method: false,
+        shorthand: false,
+        computed: false,
+        range: [18, 23],
+        loc: {
+          start: {line: 1, column: 18},
+          end: {line: 1, column: 23}
+        }
+      }],
+      range: [17, 24],
+      loc: {
+        start: {line: 1, column: 17},
+        end: {line: 1, column: 24}
+      }
+    }],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [26, 28],
+      loc: {
+        start: {line: 1, column: 26},
+        end: {line: 1, column: 28}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 28],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 28}
+    }
+  }],
+  range: [0, 28],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 28}
+  }
+}, {ecmaVersion: 6});
+
+test("f = function({x} = {x: 10}) {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "f",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "FunctionExpression",
+        id: null,
+        params: [{
+          type: "ObjectPattern",
+          properties: [{
+            type: "Property",
+            key: {
+              type: "Identifier",
+              name: "x",
+              range: [14, 15],
+              loc: {
+                start: {line: 1, column: 14},
+                end: {line: 1, column: 15}
+              }
+            },
+            value: {
+              type: "Identifier",
+              name: "x",
+              range: [14, 15],
+              loc: {
+                start: {line: 1, column: 14},
+                end: {line: 1, column: 15}
+              }
+            },
+            kind: "init",
+            method: false,
+            shorthand: true,
+            computed: false,
+            range: [14, 15],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 15}
+            }
+          }],
+          range: [13, 16],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 16}
+          }
+        }],
+        defaults: [{
+          type: "ObjectExpression",
+          properties: [{
+            type: "Property",
+            key: {
+              type: "Identifier",
+              name: "x",
+              range: [20, 21],
+              loc: {
+                start: {line: 1, column: 20},
+                end: {line: 1, column: 21}
+              }
+            },
+            value: {
+              type: "Literal",
+              value: 10,
+              raw: "10",
+              range: [23, 25],
+              loc: {
+                start: {line: 1, column: 23},
+                end: {line: 1, column: 25}
+              }
+            },
+            kind: "init",
+            method: false,
+            shorthand: false,
+            computed: false,
+            range: [20, 25],
+            loc: {
+              start: {line: 1, column: 20},
+              end: {line: 1, column: 25}
+            }
+          }],
+          range: [19, 26],
+          loc: {
+            start: {line: 1, column: 19},
+            end: {line: 1, column: 26}
+          }
+        }],
+        body: {
+          type: "BlockStatement",
+          body: [],
+          range: [28, 30],
+          loc: {
+            start: {line: 1, column: 28},
+            end: {line: 1, column: 30}
+          }
+        },
+        rest: null,
+        generator: false,
+        expression: false,
+        range: [4, 30],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 30}
+        }
+      },
+      range: [0, 30],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 30}
+      }
+    },
+    range: [0, 30],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 30}
+    }
+  }],
+  range: [0, 30],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 30}
+  }
+}, {ecmaVersion: 6});
+
+test("({f: function({x} = {x: 10}) {}})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "f",
+          range: [2, 3],
+          loc: {
+            start: {line: 1, column: 2},
+            end: {line: 1, column: 3}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "ObjectPattern",
+            properties: [{
+              type: "Property",
+              key: {
+                type: "Identifier",
+                name: "x",
+                range: [15, 16],
+                loc: {
+                  start: {line: 1, column: 15},
+                  end: {line: 1, column: 16}
+                }
+              },
+              value: {
+                type: "Identifier",
+                name: "x",
+                range: [15, 16],
+                loc: {
+                  start: {line: 1, column: 15},
+                  end: {line: 1, column: 16}
+                }
+              },
+              kind: "init",
+              method: false,
+              shorthand: true,
+              computed: false,
+              range: [15, 16],
+              loc: {
+                start: {line: 1, column: 15},
+                end: {line: 1, column: 16}
+              }
+            }],
+            range: [14, 17],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 17}
+            }
+          }],
+          defaults: [{
+            type: "ObjectExpression",
+            properties: [{
+              type: "Property",
+              key: {
+                type: "Identifier",
+                name: "x",
+                range: [21, 22],
+                loc: {
+                  start: {line: 1, column: 21},
+                  end: {line: 1, column: 22}
+                }
+              },
+              value: {
+                type: "Literal",
+                value: 10,
+                raw: "10",
+                range: [24, 26],
+                loc: {
+                  start: {line: 1, column: 24},
+                  end: {line: 1, column: 26}
+                }
+              },
+              kind: "init",
+              method: false,
+              shorthand: false,
+              computed: false,
+              range: [21, 26],
+              loc: {
+                start: {line: 1, column: 21},
+                end: {line: 1, column: 26}
+              }
+            }],
+            range: [20, 27],
+            loc: {
+              start: {line: 1, column: 20},
+              end: {line: 1, column: 27}
+            }
+          }],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [29, 31],
+            loc: {
+              start: {line: 1, column: 29},
+              end: {line: 1, column: 31}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [5, 31],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 31}
+          }
+        },
+        kind: "init",
+        method: false,
+        shorthand: false,
+        computed: false,
+        range: [2, 31],
+        loc: {
+          start: {line: 1, column: 2},
+          end: {line: 1, column: 31}
+        }
+      }],
+      range: [1, 32],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 32}
+      }
+    },
+    range: [0, 33],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 33}
+    }
+  }],
+  range: [0, 33],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 33}
+  }
+}, {ecmaVersion: 6});
+
+test("({f({x} = {x: 10}) {}})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "f",
+          range: [2, 3],
+          loc: {
+            start: {line: 1, column: 2},
+            end: {line: 1, column: 3}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "ObjectPattern",
+            properties: [{
+              type: "Property",
+              key: {
+                type: "Identifier",
+                name: "x",
+                range: [5, 6],
+                loc: {
+                  start: {line: 1, column: 5},
+                  end: {line: 1, column: 6}
+                }
+              },
+              value: {
+                type: "Identifier",
+                name: "x",
+                range: [5, 6],
+                loc: {
+                  start: {line: 1, column: 5},
+                  end: {line: 1, column: 6}
+                }
+              },
+              kind: "init",
+              method: false,
+              shorthand: true,
+              computed: false,
+              range: [5, 6],
+              loc: {
+                start: {line: 1, column: 5},
+                end: {line: 1, column: 6}
+              }
+            }],
+            range: [4, 7],
+            loc: {
+              start: {line: 1, column: 4},
+              end: {line: 1, column: 7}
+            }
+          }],
+          defaults: [{
+            type: "ObjectExpression",
+            properties: [{
+              type: "Property",
+              key: {
+                type: "Identifier",
+                name: "x",
+                range: [11, 12],
+                loc: {
+                  start: {line: 1, column: 11},
+                  end: {line: 1, column: 12}
+                }
+              },
+              value: {
+                type: "Literal",
+                value: 10,
+                raw: "10",
+                range: [14, 16],
+                loc: {
+                  start: {line: 1, column: 14},
+                  end: {line: 1, column: 16}
+                }
+              },
+              kind: "init",
+              method: false,
+              shorthand: false,
+              computed: false,
+              range: [11, 16],
+              loc: {
+                start: {line: 1, column: 11},
+                end: {line: 1, column: 16}
+              }
+            }],
+            range: [10, 17],
+            loc: {
+              start: {line: 1, column: 10},
+              end: {line: 1, column: 17}
+            }
+          }],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [19, 21],
+            loc: {
+              start: {line: 1, column: 19},
+              end: {line: 1, column: 21}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [19, 21],
+          loc: {
+            start: {line: 1, column: 19},
+            end: {line: 1, column: 21}
+          }
+        },
+        kind: "init",
+        method: true,
+        shorthand: false,
+        computed: false,
+        range: [2, 21],
+        loc: {
+          start: {line: 1, column: 2},
+          end: {line: 1, column: 21}
+        }
+      }],
+      range: [1, 22],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 22}
+      }
+    },
+    range: [0, 23],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 23}
+    }
+  }],
+  range: [0, 23],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 23}
+  }
+}, {ecmaVersion: 6});
+
+test("(class {f({x} = {x: 10}) {}})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ClassExpression",
+      superClass: null,
+      body: {
+        type: "ClassBody",
+        body: [{
+          type: "MethodDefinition",
+          key: {
+            type: "Identifier",
+            name: "f",
+            range: [8, 9],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 9}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "ObjectPattern",
+              properties: [{
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "x",
+                  range: [11, 12],
+                  loc: {
+                    start: {line: 1, column: 11},
+                    end: {line: 1, column: 12}
+                  }
+                },
+                value: {
+                  type: "Identifier",
+                  name: "x",
+                  range: [11, 12],
+                  loc: {
+                    start: {line: 1, column: 11},
+                    end: {line: 1, column: 12}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: true,
+                computed: false,
+                range: [11, 12],
+                loc: {
+                  start: {line: 1, column: 11},
+                  end: {line: 1, column: 12}
+                }
+              }],
+              range: [10, 13],
+              loc: {
+                start: {line: 1, column: 10},
+                end: {line: 1, column: 13}
+              }
+            }],
+            defaults: [{
+              type: "ObjectExpression",
+              properties: [{
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "x",
+                  range: [17, 18],
+                  loc: {
+                    start: {line: 1, column: 17},
+                    end: {line: 1, column: 18}
+                  }
+                },
+                value: {
+                  type: "Literal",
+                  value: 10,
+                  raw: "10",
+                  range: [20, 22],
+                  loc: {
+                    start: {line: 1, column: 20},
+                    end: {line: 1, column: 22}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: false,
+                computed: false,
+                range: [17, 22],
+                loc: {
+                  start: {line: 1, column: 17},
+                  end: {line: 1, column: 22}
+                }
+              }],
+              range: [16, 23],
+              loc: {
+                start: {line: 1, column: 16},
+                end: {line: 1, column: 23}
+              }
+            }],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [25, 27],
+              loc: {
+                start: {line: 1, column: 25},
+                end: {line: 1, column: 27}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [25, 27],
+            loc: {
+              start: {line: 1, column: 25},
+              end: {line: 1, column: 27}
+            }
+          },
+          kind: "",
+          static: false,
+          range: [8, 27],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 27}
+          }
+        }],
+        range: [7, 28],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 28}
+        }
+      },
+      range: [1, 28],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 28}
+      }
+    },
+    range: [0, 29],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 29}
+    }
+  }],
+  range: [0, 29],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 29}
+  }
+}, {ecmaVersion: 6});
+
+test("(({x} = {x: 10}) => {})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "x",
+            range: [3, 4],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 4}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "x",
+            range: [3, 4],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 4}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        }],
+        range: [2, 5],
+        loc: {
+          start: {line: 1, column: 2},
+          end: {line: 1, column: 5}
+        }
+      }],
+      defaults: [{
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "x",
+            range: [9, 10],
+            loc: {
+              start: {line: 1, column: 9},
+              end: {line: 1, column: 10}
+            }
+          },
+          value: {
+            type: "Literal",
+            value: 10,
+            raw: "10",
+            range: [12, 14],
+            loc: {
+              start: {line: 1, column: 12},
+              end: {line: 1, column: 14}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [9, 14],
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 14}
+          }
+        }],
+        range: [8, 15],
+        loc: {
+          start: {line: 1, column: 8},
+          end: {line: 1, column: 15}
+        }
+      }],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [20, 22],
+        loc: {
+          start: {line: 1, column: 20},
+          end: {line: 1, column: 22}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [1, 22],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 22}
+      }
+    },
+    range: [0, 23],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 23}
+    }
+  }],
+  range: [0, 23],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 23}
+  }
+}, {ecmaVersion: 6});
+
+test("x = function(y = 1) {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "FunctionExpression",
+        id: null,
+        params: [{
+          type: "Identifier",
+          name: "y",
+          range: [13, 14],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 14}
+          }
+        }],
+        defaults: [{
+          type: "Literal",
+          value: 1,
+          raw: "1",
+          range: [17, 18],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 18}
+          }
+        }],
+        body: {
+          type: "BlockStatement",
+          body: [],
+          range: [20, 22],
+          loc: {
+            start: {line: 1, column: 20},
+            end: {line: 1, column: 22}
+          }
+        },
+        rest: null,
+        generator: false,
+        expression: false,
+        range: [4, 22],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 22}
+        }
+      },
+      range: [0, 22],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 22}
+      }
+    },
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("function f(a = 1) {}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "f",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [{
+      type: "Identifier",
+      name: "a",
+      range: [11, 12],
+      loc: {
+        start: {line: 1, column: 11},
+        end: {line: 1, column: 12}
+      }
+    }],
+    defaults: [{
+      type: "Literal",
+      value: 1,
+      raw: "1",
+      range: [15, 16],
+      loc: {
+        start: {line: 1, column: 15},
+        end: {line: 1, column: 16}
+      }
+    }],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [18, 20],
+      loc: {
+        start: {line: 1, column: 18},
+        end: {line: 1, column: 20}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 20],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 20}
+    }
+  }],
+  range: [0, 20],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 20}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { f: function(a=1) {} }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "f",
+            range: [6, 7],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 7}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "a",
+              range: [18, 19],
+              loc: {
+                start: {line: 1, column: 18},
+                end: {line: 1, column: 19}
+              }
+            }],
+            defaults: [{
+              type: "Literal",
+              value: 1,
+              raw: "1",
+              range: [20, 21],
+              loc: {
+                start: {line: 1, column: 20},
+                end: {line: 1, column: 21}
+              }
+            }],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [23, 25],
+              loc: {
+                start: {line: 1, column: 23},
+                end: {line: 1, column: 25}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [9, 25],
+            loc: {
+              start: {line: 1, column: 9},
+              end: {line: 1, column: 25}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [6, 25],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 25}
+          }
+        }],
+        range: [4, 27],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 27}
+        }
+      },
+      range: [0, 27],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 27}
+      }
+    },
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+test("x = { f(a=1) {} }", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "Identifier",
+        name: "x",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      },
+      right: {
+        type: "ObjectExpression",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "f",
+            range: [6, 7],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 7}
+            }
+          },
+          value: {
+            type: "FunctionExpression",
+            id: null,
+            params: [{
+              type: "Identifier",
+              name: "a",
+              range: [8, 9],
+              loc: {
+                start: {line: 1, column: 8},
+                end: {line: 1, column: 9}
+              }
+            }],
+            defaults: [{
+              type: "Literal",
+              value: 1,
+              raw: "1",
+              range: [10, 11],
+              loc: {
+                start: {line: 1, column: 10},
+                end: {line: 1, column: 11}
+              }
+            }],
+            body: {
+              type: "BlockStatement",
+              body: [],
+              range: [13, 15],
+              loc: {
+                start: {line: 1, column: 13},
+                end: {line: 1, column: 15}
+              }
+            },
+            rest: null,
+            generator: false,
+            expression: false,
+            range: [13, 15],
+            loc: {
+              start: {line: 1, column: 13},
+              end: {line: 1, column: 15}
+            }
+          },
+          kind: "init",
+          method: true,
+          shorthand: false,
+          computed: false,
+          range: [6, 15],
+          loc: {
+            start: {line: 1, column: 6},
+            end: {line: 1, column: 15}
+          }
+        }],
+        range: [4, 17],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 17}
+        }
+      },
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+// ES6: Rest parameters
+
+test("function f(a, ...b) {}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "f",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [{
+      type: "Identifier",
+      name: "a",
+      range: [11, 12],
+      loc: {
+        start: {line: 1, column: 11},
+        end: {line: 1, column: 12}
+      }
+    }],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [20, 22],
+      loc: {
+        start: {line: 1, column: 20},
+        end: {line: 1, column: 22}
+      }
+    },
+    rest: {
+      type: "Identifier",
+      name: "b",
+      range: [17, 18],
+      loc: {
+        start: {line: 1, column: 17},
+        end: {line: 1, column: 18}
+      }
+    },
+    generator: false,
+    expression: false,
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+// ES6: Destructured Parameters
+
+test("function x([ a, b ]){}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "x",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [{
+      type: "ArrayPattern",
+      elements: [
+        {
+          type: "Identifier",
+          name: "a",
+          range: [13, 14],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 14}
+          }
+        },
+        {
+          type: "Identifier",
+          name: "b",
+          range: [16, 17],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 17}
+          }
+        }
+      ],
+      range: [11, 19],
+      loc: {
+        start: {line: 1, column: 11},
+        end: {line: 1, column: 19}
+      }
+    }],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [20, 22],
+      loc: {
+        start: {line: 1, column: 20},
+        end: {line: 1, column: 22}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("function x({ a, b }){}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "x",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [{
+      type: "ObjectPattern",
+      properties: [
+        {
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [13, 14],
+            loc: {
+              start: {line: 1, column: 13},
+              end: {line: 1, column: 14}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "a",
+            range: [13, 14],
+            loc: {
+              start: {line: 1, column: 13},
+              end: {line: 1, column: 14}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [13, 14],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 14}
+          }
+        },
+        {
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "b",
+            range: [16, 17],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 17}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "b",
+            range: [16, 17],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 17}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [16, 17],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 17}
+          }
+        }
+      ],
+      range: [11, 19],
+      loc: {
+        start: {line: 1, column: 11},
+        end: {line: 1, column: 19}
+      }
+    }],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [20, 22],
+      loc: {
+        start: {line: 1, column: 20},
+        end: {line: 1, column: 22}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("function x(a, { a }){}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "x",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [
+      {
+        type: "Identifier",
+        name: "a",
+        range: [11, 12],
+        loc: {
+          start: {line: 1, column: 11},
+          end: {line: 1, column: 12}
+        }
+      },
+      {
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [16, 17],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 17}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "a",
+            range: [16, 17],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 17}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [16, 17],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 17}
+          }
+        }],
+        range: [14, 19],
+        loc: {
+          start: {line: 1, column: 14},
+          end: {line: 1, column: 19}
+        }
+      }
+    ],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [20, 22],
+      loc: {
+        start: {line: 1, column: 20},
+        end: {line: 1, column: 22}
+      }
+    },
+    rest: null,
+    generator: false,
+    expression: false,
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("function x(...[ a, b ]){}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "x",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [23, 25],
+      loc: {
+        start: {line: 1, column: 23},
+        end: {line: 1, column: 25}
+      }
+    },
+    rest: {
+      type: "ArrayPattern",
+      elements: [
+        {
+          type: "Identifier",
+          name: "a",
+          range: [16, 17],
+          loc: {
+            start: {line: 1, column: 16},
+            end: {line: 1, column: 17}
+          }
+        },
+        {
+          type: "Identifier",
+          name: "b",
+          range: [19, 20],
+          loc: {
+            start: {line: 1, column: 19},
+            end: {line: 1, column: 20}
+          }
+        }
+      ],
+      range: [14, 22],
+      loc: {
+        start: {line: 1, column: 14},
+        end: {line: 1, column: 22}
+      }
+    },
+    generator: false,
+    expression: false,
+    range: [0, 25],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 25}
+    }
+  }],
+  range: [0, 25],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 25}
+  }
+}, {ecmaVersion: 6});
+
+test("function x({ a: { w, x }, b: [y, z] }, ...[a, b, c]){}", {
+  type: "Program",
+  body: [{
+    type: "FunctionDeclaration",
+    id: {
+      type: "Identifier",
+      name: "x",
+      range: [9, 10],
+      loc: {
+        start: {line: 1, column: 9},
+        end: {line: 1, column: 10}
+      }
+    },
+    params: [{
+      type: "ObjectPattern",
+      properties: [
+        {
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [13, 14],
+            loc: {
+              start: {line: 1, column: 13},
+              end: {line: 1, column: 14}
+            }
+          },
+          value: {
+            type: "ObjectPattern",
+            properties: [
+              {
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "w",
+                  range: [18, 19],
+                  loc: {
+                    start: {line: 1, column: 18},
+                    end: {line: 1, column: 19}
+                  }
+                },
+                value: {
+                  type: "Identifier",
+                  name: "w",
+                  range: [18, 19],
+                  loc: {
+                    start: {line: 1, column: 18},
+                    end: {line: 1, column: 19}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: true,
+                computed: false,
+                range: [18, 19],
+                loc: {
+                  start: {line: 1, column: 18},
+                  end: {line: 1, column: 19}
+                }
+              },
+              {
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "x",
+                  range: [21, 22],
+                  loc: {
+                    start: {line: 1, column: 21},
+                    end: {line: 1, column: 22}
+                  }
+                },
+                value: {
+                  type: "Identifier",
+                  name: "x",
+                  range: [21, 22],
+                  loc: {
+                    start: {line: 1, column: 21},
+                    end: {line: 1, column: 22}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: true,
+                computed: false,
+                range: [21, 22],
+                loc: {
+                  start: {line: 1, column: 21},
+                  end: {line: 1, column: 22}
+                }
+              }
+            ],
+            range: [16, 24],
+            loc: {
+              start: {line: 1, column: 16},
+              end: {line: 1, column: 24}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [13, 24],
+          loc: {
+            start: {line: 1, column: 13},
+            end: {line: 1, column: 24}
+          }
+        },
+        {
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "b",
+            range: [26, 27],
+            loc: {
+              start: {line: 1, column: 26},
+              end: {line: 1, column: 27}
+            }
+          },
+          value: {
+            type: "ArrayPattern",
+            elements: [
+              {
+                type: "Identifier",
+                name: "y",
+                range: [30, 31],
+                loc: {
+                  start: {line: 1, column: 30},
+                  end: {line: 1, column: 31}
+                }
+              },
+              {
+                type: "Identifier",
+                name: "z",
+                range: [33, 34],
+                loc: {
+                  start: {line: 1, column: 33},
+                  end: {line: 1, column: 34}
+                }
+              }
+            ],
+            range: [29, 35],
+            loc: {
+              start: {line: 1, column: 29},
+              end: {line: 1, column: 35}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [26, 35],
+          loc: {
+            start: {line: 1, column: 26},
+            end: {line: 1, column: 35}
+          }
+        }
+      ],
+      range: [11, 37],
+      loc: {
+        start: {line: 1, column: 11},
+        end: {line: 1, column: 37}
+      }
+    }],
+    defaults: [],
+    body: {
+      type: "BlockStatement",
+      body: [],
+      range: [52, 54],
+      loc: {
+        start: {line: 1, column: 52},
+        end: {line: 1, column: 54}
+      }
+    },
+    rest: {
+      type: "ArrayPattern",
+      elements: [
+        {
+          type: "Identifier",
+          name: "a",
+          range: [43, 44],
+          loc: {
+            start: {line: 1, column: 43},
+            end: {line: 1, column: 44}
+          }
+        },
+        {
+          type: "Identifier",
+          name: "b",
+          range: [46, 47],
+          loc: {
+            start: {line: 1, column: 46},
+            end: {line: 1, column: 47}
+          }
+        },
+        {
+          type: "Identifier",
+          name: "c",
+          range: [49, 50],
+          loc: {
+            start: {line: 1, column: 49},
+            end: {line: 1, column: 50}
+          }
+        }
+      ],
+      range: [42, 51],
+      loc: {
+        start: {line: 1, column: 42},
+        end: {line: 1, column: 51}
+      }
+    },
+    generator: false,
+    expression: false,
+    range: [0, 54],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 54}
+    }
+  }],
+  range: [0, 54],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 54}
+  }
+}, {ecmaVersion: 6});
+
+test("(function x([ a, b ]){})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "FunctionExpression",
+      id: {
+        type: "Identifier",
+        name: "x",
+        range: [10, 11],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 11}
+        }
+      },
+      params: [{
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [14, 15],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 15}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "b",
+            range: [17, 18],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 18}
+            }
+          }
+        ],
+        range: [12, 20],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 20}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [21, 23],
+        loc: {
+          start: {line: 1, column: 21},
+          end: {line: 1, column: 23}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [1, 23],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 23}
+      }
+    },
+    range: [0, 24],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 24}
+    }
+  }],
+  range: [0, 24],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 24}
+  }
+}, {ecmaVersion: 6});
+
+test("(function x({ a, b }){})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "FunctionExpression",
+      id: {
+        type: "Identifier",
+        name: "x",
+        range: [10, 11],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 11}
+        }
+      },
+      params: [{
+        type: "ObjectPattern",
+        properties: [
+          {
+            type: "Property",
+            key: {
+              type: "Identifier",
+              name: "a",
+              range: [14, 15],
+              loc: {
+                start: {line: 1, column: 14},
+                end: {line: 1, column: 15}
+              }
+            },
+            value: {
+              type: "Identifier",
+              name: "a",
+              range: [14, 15],
+              loc: {
+                start: {line: 1, column: 14},
+                end: {line: 1, column: 15}
+              }
+            },
+            kind: "init",
+            method: false,
+            shorthand: true,
+            computed: false,
+            range: [14, 15],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 15}
+            }
+          },
+          {
+            type: "Property",
+            key: {
+              type: "Identifier",
+              name: "b",
+              range: [17, 18],
+              loc: {
+                start: {line: 1, column: 17},
+                end: {line: 1, column: 18}
+              }
+            },
+            value: {
+              type: "Identifier",
+              name: "b",
+              range: [17, 18],
+              loc: {
+                start: {line: 1, column: 17},
+                end: {line: 1, column: 18}
+              }
+            },
+            kind: "init",
+            method: false,
+            shorthand: true,
+            computed: false,
+            range: [17, 18],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 18}
+            }
+          }
+        ],
+        range: [12, 20],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 20}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [21, 23],
+        loc: {
+          start: {line: 1, column: 21},
+          end: {line: 1, column: 23}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [1, 23],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 23}
+      }
+    },
+    range: [0, 24],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 24}
+    }
+  }],
+  range: [0, 24],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 24}
+  }
+}, {ecmaVersion: 6});
+
+test("(function x(...[ a, b ]){})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "FunctionExpression",
+      id: {
+        type: "Identifier",
+        name: "x",
+        range: [10, 11],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 11}
+        }
+      },
+      params: [],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [24, 26],
+        loc: {
+          start: {line: 1, column: 24},
+          end: {line: 1, column: 26}
+        }
+      },
+      rest: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [17, 18],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 18}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "b",
+            range: [20, 21],
+            loc: {
+              start: {line: 1, column: 20},
+              end: {line: 1, column: 21}
+            }
+          }
+        ],
+        range: [15, 23],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 23}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [1, 26],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 26}
+      }
+    },
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+test("(function x({ a: { w, x }, b: [y, z] }, ...[a, b, c]){})", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "FunctionExpression",
+      id: {
+        type: "Identifier",
+        name: "x",
+        range: [10, 11],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 11}
+        }
+      },
+      params: [{
+        type: "ObjectPattern",
+        properties: [
+          {
+            type: "Property",
+            key: {
+              type: "Identifier",
+              name: "a",
+              range: [14, 15],
+              loc: {
+                start: {line: 1, column: 14},
+                end: {line: 1, column: 15}
+              }
+            },
+            value: {
+              type: "ObjectPattern",
+              properties: [
+                {
+                  type: "Property",
+                  key: {
+                    type: "Identifier",
+                    name: "w",
+                    range: [19, 20],
+                    loc: {
+                      start: {line: 1, column: 19},
+                      end: {line: 1, column: 20}
+                    }
+                  },
+                  value: {
+                    type: "Identifier",
+                    name: "w",
+                    range: [19, 20],
+                    loc: {
+                      start: {line: 1, column: 19},
+                      end: {line: 1, column: 20}
+                    }
+                  },
+                  kind: "init",
+                  method: false,
+                  shorthand: true,
+                  computed: false,
+                  range: [19, 20],
+                  loc: {
+                    start: {line: 1, column: 19},
+                    end: {line: 1, column: 20}
+                  }
+                },
+                {
+                  type: "Property",
+                  key: {
+                    type: "Identifier",
+                    name: "x",
+                    range: [22, 23],
+                    loc: {
+                      start: {line: 1, column: 22},
+                      end: {line: 1, column: 23}
+                    }
+                  },
+                  value: {
+                    type: "Identifier",
+                    name: "x",
+                    range: [22, 23],
+                    loc: {
+                      start: {line: 1, column: 22},
+                      end: {line: 1, column: 23}
+                    }
+                  },
+                  kind: "init",
+                  method: false,
+                  shorthand: true,
+                  computed: false,
+                  range: [22, 23],
+                  loc: {
+                    start: {line: 1, column: 22},
+                    end: {line: 1, column: 23}
+                  }
+                }
+              ],
+              range: [17, 25],
+              loc: {
+                start: {line: 1, column: 17},
+                end: {line: 1, column: 25}
+              }
+            },
+            kind: "init",
+            method: false,
+            shorthand: false,
+            computed: false,
+            range: [14, 25],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 25}
+            }
+          },
+          {
+            type: "Property",
+            key: {
+              type: "Identifier",
+              name: "b",
+              range: [27, 28],
+              loc: {
+                start: {line: 1, column: 27},
+                end: {line: 1, column: 28}
+              }
+            },
+            value: {
+              type: "ArrayPattern",
+              elements: [
+                {
+                  type: "Identifier",
+                  name: "y",
+                  range: [31, 32],
+                  loc: {
+                    start: {line: 1, column: 31},
+                    end: {line: 1, column: 32}
+                  }
+                },
+                {
+                  type: "Identifier",
+                  name: "z",
+                  range: [34, 35],
+                  loc: {
+                    start: {line: 1, column: 34},
+                    end: {line: 1, column: 35}
+                  }
+                }
+              ],
+              range: [30, 36],
+              loc: {
+                start: {line: 1, column: 30},
+                end: {line: 1, column: 36}
+              }
+            },
+            kind: "init",
+            method: false,
+            shorthand: false,
+            computed: false,
+            range: [27, 36],
+            loc: {
+              start: {line: 1, column: 27},
+              end: {line: 1, column: 36}
+            }
+          }
+        ],
+        range: [12, 38],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 38}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [53, 55],
+        loc: {
+          start: {line: 1, column: 53},
+          end: {line: 1, column: 55}
+        }
+      },
+      rest: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [44, 45],
+            loc: {
+              start: {line: 1, column: 44},
+              end: {line: 1, column: 45}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "b",
+            range: [47, 48],
+            loc: {
+              start: {line: 1, column: 47},
+              end: {line: 1, column: 48}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "c",
+            range: [50, 51],
+            loc: {
+              start: {line: 1, column: 50},
+              end: {line: 1, column: 51}
+            }
+          }
+        ],
+        range: [43, 52],
+        loc: {
+          start: {line: 1, column: 43},
+          end: {line: 1, column: 52}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [1, 55],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 55}
+      }
+    },
+    range: [0, 56],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 56}
+    }
+  }],
+  range: [0, 56],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 56}
+  }
+}, {ecmaVersion: 6});
+
+test("({ x([ a, b ]){} })", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "ArrayPattern",
+            elements: [
+              {
+                type: "Identifier",
+                name: "a",
+                range: [7, 8],
+                loc: {
+                  start: {line: 1, column: 7},
+                  end: {line: 1, column: 8}
+                }
+              },
+              {
+                type: "Identifier",
+                name: "b",
+                range: [10, 11],
+                loc: {
+                  start: {line: 1, column: 10},
+                  end: {line: 1, column: 11}
+                }
+              }
+            ],
+            range: [5, 13],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 13}
+            }
+          }],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [14, 16],
+            loc: {
+              start: {line: 1, column: 14},
+              end: {line: 1, column: 16}
+            }
+          },
+          rest: null,
+          generator: false,
+          expression: false,
+          range: [14, 16],
+          loc: {
+            start: {line: 1, column: 14},
+            end: {line: 1, column: 16}
+          }
+        },
+        kind: "init",
+        method: true,
+        shorthand: false,
+        computed: false,
+        range: [3, 16],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 16}
+        }
+      }],
+      range: [1, 18],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 18}
+      }
+    },
+    range: [0, 19],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 19}
+    }
+  }],
+  range: [0, 19],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 19}
+  }
+}, {ecmaVersion: 6});
+
+test("({ x(...[ a, b ]){} })", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [17, 19],
+            loc: {
+              start: {line: 1, column: 17},
+              end: {line: 1, column: 19}
+            }
+          },
+          rest: {
+            type: "ArrayPattern",
+            elements: [
+              {
+                type: "Identifier",
+                name: "a",
+                range: [10, 11],
+                loc: {
+                  start: {line: 1, column: 10},
+                  end: {line: 1, column: 11}
+                }
+              },
+              {
+                type: "Identifier",
+                name: "b",
+                range: [13, 14],
+                loc: {
+                  start: {line: 1, column: 13},
+                  end: {line: 1, column: 14}
+                }
+              }
+            ],
+            range: [8, 16],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 16}
+            }
+          },
+          generator: false,
+          expression: false,
+          range: [17, 19],
+          loc: {
+            start: {line: 1, column: 17},
+            end: {line: 1, column: 19}
+          }
+        },
+        kind: "init",
+        method: true,
+        shorthand: false,
+        computed: false,
+        range: [3, 19],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 19}
+        }
+      }],
+      range: [1, 21],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 21}
+      }
+    },
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("({ x({ a: { w, x }, b: [y, z] }, ...[a, b, c]){} })", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ObjectExpression",
+      properties: [{
+        type: "Property",
+        key: {
+          type: "Identifier",
+          name: "x",
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        },
+        value: {
+          type: "FunctionExpression",
+          id: null,
+          params: [{
+            type: "ObjectPattern",
+            properties: [
+              {
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "a",
+                  range: [7, 8],
+                  loc: {
+                    start: {line: 1, column: 7},
+                    end: {line: 1, column: 8}
+                  }
+                },
+                value: {
+                  type: "ObjectPattern",
+                  properties: [
+                    {
+                      type: "Property",
+                      key: {
+                        type: "Identifier",
+                        name: "w",
+                        range: [12, 13],
+                        loc: {
+                          start: {line: 1, column: 12},
+                          end: {line: 1, column: 13}
+                        }
+                      },
+                      value: {
+                        type: "Identifier",
+                        name: "w",
+                        range: [12, 13],
+                        loc: {
+                          start: {line: 1, column: 12},
+                          end: {line: 1, column: 13}
+                        }
+                      },
+                      kind: "init",
+                      method: false,
+                      shorthand: true,
+                      computed: false,
+                      range: [12, 13],
+                      loc: {
+                        start: {line: 1, column: 12},
+                        end: {line: 1, column: 13}
+                      }
+                    },
+                    {
+                      type: "Property",
+                      key: {
+                        type: "Identifier",
+                        name: "x",
+                        range: [15, 16],
+                        loc: {
+                          start: {line: 1, column: 15},
+                          end: {line: 1, column: 16}
+                        }
+                      },
+                      value: {
+                        type: "Identifier",
+                        name: "x",
+                        range: [15, 16],
+                        loc: {
+                          start: {line: 1, column: 15},
+                          end: {line: 1, column: 16}
+                        }
+                      },
+                      kind: "init",
+                      method: false,
+                      shorthand: true,
+                      computed: false,
+                      range: [15, 16],
+                      loc: {
+                        start: {line: 1, column: 15},
+                        end: {line: 1, column: 16}
+                      }
+                    }
+                  ],
+                  range: [10, 18],
+                  loc: {
+                    start: {line: 1, column: 10},
+                    end: {line: 1, column: 18}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: false,
+                computed: false,
+                range: [7, 18],
+                loc: {
+                  start: {line: 1, column: 7},
+                  end: {line: 1, column: 18}
+                }
+              },
+              {
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "b",
+                  range: [20, 21],
+                  loc: {
+                    start: {line: 1, column: 20},
+                    end: {line: 1, column: 21}
+                  }
+                },
+                value: {
+                  type: "ArrayPattern",
+                  elements: [
+                    {
+                      type: "Identifier",
+                      name: "y",
+                      range: [24, 25],
+                      loc: {
+                        start: {line: 1, column: 24},
+                        end: {line: 1, column: 25}
+                      }
+                    },
+                    {
+                      type: "Identifier",
+                      name: "z",
+                      range: [27, 28],
+                      loc: {
+                        start: {line: 1, column: 27},
+                        end: {line: 1, column: 28}
+                      }
+                    }
+                  ],
+                  range: [23, 29],
+                  loc: {
+                    start: {line: 1, column: 23},
+                    end: {line: 1, column: 29}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: false,
+                computed: false,
+                range: [20, 29],
+                loc: {
+                  start: {line: 1, column: 20},
+                  end: {line: 1, column: 29}
+                }
+              }
+            ],
+            range: [5, 31],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 31}
+            }
+          }],
+          defaults: [],
+          body: {
+            type: "BlockStatement",
+            body: [],
+            range: [46, 48],
+            loc: {
+              start: {line: 1, column: 46},
+              end: {line: 1, column: 48}
+            }
+          },
+          rest: {
+            type: "ArrayPattern",
+            elements: [
+              {
+                type: "Identifier",
+                name: "a",
+                range: [37, 38],
+                loc: {
+                  start: {line: 1, column: 37},
+                  end: {line: 1, column: 38}
+                }
+              },
+              {
+                type: "Identifier",
+                name: "b",
+                range: [40, 41],
+                loc: {
+                  start: {line: 1, column: 40},
+                  end: {line: 1, column: 41}
+                }
+              },
+              {
+                type: "Identifier",
+                name: "c",
+                range: [43, 44],
+                loc: {
+                  start: {line: 1, column: 43},
+                  end: {line: 1, column: 44}
+                }
+              }
+            ],
+            range: [36, 45],
+            loc: {
+              start: {line: 1, column: 36},
+              end: {line: 1, column: 45}
+            }
+          },
+          generator: false,
+          expression: false,
+          range: [46, 48],
+          loc: {
+            start: {line: 1, column: 46},
+            end: {line: 1, column: 48}
+          }
+        },
+        kind: "init",
+        method: true,
+        shorthand: false,
+        computed: false,
+        range: [3, 48],
+        loc: {
+          start: {line: 1, column: 3},
+          end: {line: 1, column: 48}
+        }
+      }],
+      range: [1, 50],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 50}
+      }
+    },
+    range: [0, 51],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 51}
+    }
+  }],
+  range: [0, 51],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 51}
+  }
+}, {ecmaVersion: 6});
+
+test("(...a) => {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [10, 12],
+        loc: {
+          start: {line: 1, column: 10},
+          end: {line: 1, column: 12}
+        }
+      },
+      rest: {
+        type: "Identifier",
+        name: "a",
+        range: [4, 5],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 5}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [0, 12],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 12}
+      }
+    },
+    range: [0, 12],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 12}
+    }
+  }],
+  range: [0, 12],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 12}
+  }
+}, {ecmaVersion: 6});
+
+test("(a, ...b) => {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "a",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [13, 15],
+        loc: {
+          start: {line: 1, column: 13},
+          end: {line: 1, column: 15}
+        }
+      },
+      rest: {
+        type: "Identifier",
+        name: "b",
+        range: [7, 8],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 8}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [0, 15],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 15}
+      }
+    },
+    range: [0, 15],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 15}
+    }
+  }],
+  range: [0, 15],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 15}
+  }
+}, {ecmaVersion: 6});
+
+test("({ a }) => {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [3, 4],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 4}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "a",
+            range: [3, 4],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 4}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        }],
+        range: [1, 6],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 6}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [11, 13],
+        loc: {
+          start: {line: 1, column: 11},
+          end: {line: 1, column: 13}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [0, 13],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 13}
+      }
+    },
+    range: [0, 13],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 13}
+    }
+  }],
+  range: [0, 13],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 13}
+  }
+}, {ecmaVersion: 6});
+
+test("({ a }, ...b) => {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [3, 4],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 4}
+            }
+          },
+          value: {
+            type: "Identifier",
+            name: "a",
+            range: [3, 4],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 4}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: true,
+          computed: false,
+          range: [3, 4],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 4}
+          }
+        }],
+        range: [1, 6],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 6}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [17, 19],
+        loc: {
+          start: {line: 1, column: 17},
+          end: {line: 1, column: 19}
+        }
+      },
+      rest: {
+        type: "Identifier",
+        name: "b",
+        range: [11, 12],
+        loc: {
+          start: {line: 1, column: 11},
+          end: {line: 1, column: 12}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [0, 19],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 19}
+      }
+    },
+    range: [0, 19],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 19}
+    }
+  }],
+  range: [0, 19],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 19}
+  }
+}, {ecmaVersion: 6});
+
+test("(...[a, b]) => {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [15, 17],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 17}
+        }
+      },
+      rest: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          {
+            type: "Identifier",
+            name: "b",
+            range: [8, 9],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 9}
+            }
+          }
+        ],
+        range: [4, 10],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 10}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("(a, ...[b]) => {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "a",
+        range: [1, 2],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 2}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [15, 17],
+        loc: {
+          start: {line: 1, column: 15},
+          end: {line: 1, column: 17}
+        }
+      },
+      rest: {
+        type: "ArrayPattern",
+        elements: [{
+          type: "Identifier",
+          name: "b",
+          range: [8, 9],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 9}
+          }
+        }],
+        range: [7, 10],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 10}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [0, 17],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 17}
+      }
+    },
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("({ a: [a, b] }, ...c) => {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "ObjectPattern",
+        properties: [{
+          type: "Property",
+          key: {
+            type: "Identifier",
+            name: "a",
+            range: [3, 4],
+            loc: {
+              start: {line: 1, column: 3},
+              end: {line: 1, column: 4}
+            }
+          },
+          value: {
+            type: "ArrayPattern",
+            elements: [
+              {
+                type: "Identifier",
+                name: "a",
+                range: [7, 8],
+                loc: {
+                  start: {line: 1, column: 7},
+                  end: {line: 1, column: 8}
+                }
+              },
+              {
+                type: "Identifier",
+                name: "b",
+                range: [10, 11],
+                loc: {
+                  start: {line: 1, column: 10},
+                  end: {line: 1, column: 11}
+                }
+              }
+            ],
+            range: [6, 12],
+            loc: {
+              start: {line: 1, column: 6},
+              end: {line: 1, column: 12}
+            }
+          },
+          kind: "init",
+          method: false,
+          shorthand: false,
+          computed: false,
+          range: [3, 12],
+          loc: {
+            start: {line: 1, column: 3},
+            end: {line: 1, column: 12}
+          }
+        }],
+        range: [1, 14],
+        loc: {
+          start: {line: 1, column: 1},
+          end: {line: 1, column: 14}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [25, 27],
+        loc: {
+          start: {line: 1, column: 25},
+          end: {line: 1, column: 27}
+        }
+      },
+      rest: {
+        type: "Identifier",
+        name: "c",
+        range: [19, 20],
+        loc: {
+          start: {line: 1, column: 19},
+          end: {line: 1, column: 20}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [0, 27],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 27}
+      }
+    },
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+test("({ a: b, c }, [d, e], ...f) => {}", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [
+        {
+          type: "ObjectPattern",
+          properties: [
+            {
+              type: "Property",
+              key: {
+                type: "Identifier",
+                name: "a",
+                range: [3, 4],
+                loc: {
+                  start: {line: 1, column: 3},
+                  end: {line: 1, column: 4}
+                }
+              },
+              value: {
+                type: "Identifier",
+                name: "b",
+                range: [6, 7],
+                loc: {
+                  start: {line: 1, column: 6},
+                  end: {line: 1, column: 7}
+                }
+              },
+              kind: "init",
+              method: false,
+              shorthand: false,
+              computed: false,
+              range: [3, 7],
+              loc: {
+                start: {line: 1, column: 3},
+                end: {line: 1, column: 7}
+              }
+            },
+            {
+              type: "Property",
+              key: {
+                type: "Identifier",
+                name: "c",
+                range: [9, 10],
+                loc: {
+                  start: {line: 1, column: 9},
+                  end: {line: 1, column: 10}
+                }
+              },
+              value: {
+                type: "Identifier",
+                name: "c",
+                range: [9, 10],
+                loc: {
+                  start: {line: 1, column: 9},
+                  end: {line: 1, column: 10}
+                }
+              },
+              kind: "init",
+              method: false,
+              shorthand: true,
+              computed: false,
+              range: [9, 10],
+              loc: {
+                start: {line: 1, column: 9},
+                end: {line: 1, column: 10}
+              }
+            }
+          ],
+          range: [1, 12],
+          loc: {
+            start: {line: 1, column: 1},
+            end: {line: 1, column: 12}
+          }
+        },
+        {
+          type: "ArrayPattern",
+          elements: [
+            {
+              type: "Identifier",
+              name: "d",
+              range: [15, 16],
+              loc: {
+                start: {line: 1, column: 15},
+                end: {line: 1, column: 16}
+              }
+            },
+            {
+              type: "Identifier",
+              name: "e",
+              range: [18, 19],
+              loc: {
+                start: {line: 1, column: 18},
+                end: {line: 1, column: 19}
+              }
+            }
+          ],
+          range: [14, 20],
+          loc: {
+            start: {line: 1, column: 14},
+            end: {line: 1, column: 20}
+          }
+        }
+      ],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [],
+        range: [31, 33],
+        loc: {
+          start: {line: 1, column: 31},
+          end: {line: 1, column: 33}
+        }
+      },
+      rest: {
+        type: "Identifier",
+        name: "f",
+        range: [25, 26],
+        loc: {
+          start: {line: 1, column: 25},
+          end: {line: 1, column: 26}
+        }
+      },
+      generator: false,
+      expression: false,
+      range: [0, 33],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 33}
+      }
+    },
+    range: [0, 33],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 33}
+    }
+  }],
+  range: [0, 33],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 33}
+  }
+}, {ecmaVersion: 6});
+
+// ES6: SpreadElement
+
+test("[...a] = b", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "ArrayPattern",
+        elements: [{
+          type: "SpreadElement",
+          argument: {
+            type: "Identifier",
+            name: "a",
+            range: [4, 5],
+            loc: {
+              start: {line: 1, column: 4},
+              end: {line: 1, column: 5}
+            }
+          },
+          range: [1, 5],
+          loc: {
+            start: {line: 1, column: 1},
+            end: {line: 1, column: 5}
+          }
+        }],
+        range: [0, 6],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 6}
+        }
+      },
+      right: {
+        type: "Identifier",
+        name: "b",
+        range: [9, 10],
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 10}
+        }
+      },
+      range: [0, 10],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 10}
+      }
+    },
+    range: [0, 10],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 10}
+    }
+  }],
+  range: [0, 10],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 10}
+  }
+}, {ecmaVersion: 6});
+
+test("[a, ...b] = c", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [1, 2],
+            loc: {
+              start: {line: 1, column: 1},
+              end: {line: 1, column: 2}
+            }
+          },
+          {
+            type: "SpreadElement",
+            argument: {
+              type: "Identifier",
+              name: "b",
+              range: [7, 8],
+              loc: {
+                start: {line: 1, column: 7},
+                end: {line: 1, column: 8}
+              }
+            },
+            range: [4, 8],
+            loc: {
+              start: {line: 1, column: 4},
+              end: {line: 1, column: 8}
+            }
+          }
+        ],
+        range: [0, 9],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 9}
+        }
+      },
+      right: {
+        type: "Identifier",
+        name: "c",
+        range: [12, 13],
+        loc: {
+          start: {line: 1, column: 12},
+          end: {line: 1, column: 13}
+        }
+      },
+      range: [0, 13],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 13}
+      }
+    },
+    range: [0, 13],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 13}
+    }
+  }],
+  range: [0, 13],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 13}
+  }
+}, {ecmaVersion: 6});
+
+test("[{ a, b }, ...c] = d", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "ObjectPattern",
+            properties: [
+              {
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "a",
+                  range: [3, 4],
+                  loc: {
+                    start: {line: 1, column: 3},
+                    end: {line: 1, column: 4}
+                  }
+                },
+                value: {
+                  type: "Identifier",
+                  name: "a",
+                  range: [3, 4],
+                  loc: {
+                    start: {line: 1, column: 3},
+                    end: {line: 1, column: 4}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: true,
+                computed: false,
+                range: [3, 4],
+                loc: {
+                  start: {line: 1, column: 3},
+                  end: {line: 1, column: 4}
+                }
+              },
+              {
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "b",
+                  range: [6, 7],
+                  loc: {
+                    start: {line: 1, column: 6},
+                    end: {line: 1, column: 7}
+                  }
+                },
+                value: {
+                  type: "Identifier",
+                  name: "b",
+                  range: [6, 7],
+                  loc: {
+                    start: {line: 1, column: 6},
+                    end: {line: 1, column: 7}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: true,
+                computed: false,
+                range: [6, 7],
+                loc: {
+                  start: {line: 1, column: 6},
+                  end: {line: 1, column: 7}
+                }
+              }
+            ],
+            range: [1, 9],
+            loc: {
+              start: {line: 1, column: 1},
+              end: {line: 1, column: 9}
+            }
+          },
+          {
+            type: "SpreadElement",
+            argument: {
+              type: "Identifier",
+              name: "c",
+              range: [14, 15],
+              loc: {
+                start: {line: 1, column: 14},
+                end: {line: 1, column: 15}
+              }
+            },
+            range: [11, 15],
+            loc: {
+              start: {line: 1, column: 11},
+              end: {line: 1, column: 15}
+            }
+          }
+        ],
+        range: [0, 16],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 16}
+        }
+      },
+      right: {
+        type: "Identifier",
+        name: "d",
+        range: [19, 20],
+        loc: {
+          start: {line: 1, column: 19},
+          end: {line: 1, column: 20}
+        }
+      },
+      range: [0, 20],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 20}
+      }
+    },
+    range: [0, 20],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 20}
+    }
+  }],
+  range: [0, 20],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 20}
+  }
+}, {ecmaVersion: 6});
+
+test("[a, ...[b, c]] = d", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "AssignmentExpression",
+      operator: "=",
+      left: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [1, 2],
+            loc: {
+              start: {line: 1, column: 1},
+              end: {line: 1, column: 2}
+            }
+          },
+          {
+            type: "SpreadElement",
+            argument: {
+              type: "ArrayPattern",
+              elements: [
+                {
+                  type: "Identifier",
+                  name: "b",
+                  range: [8, 9],
+                  loc: {
+                    start: {line: 1, column: 8},
+                    end: {line: 1, column: 9}
+                  }
+                },
+                {
+                  type: "Identifier",
+                  name: "c",
+                  range: [11, 12],
+                  loc: {
+                    start: {line: 1, column: 11},
+                    end: {line: 1, column: 12}
+                  }
+                }
+              ],
+              range: [7, 13],
+              loc: {
+                start: {line: 1, column: 7},
+                end: {line: 1, column: 13}
+              }
+            },
+            range: [4, 13],
+            loc: {
+              start: {line: 1, column: 4},
+              end: {line: 1, column: 13}
+            }
+          }
+        ],
+        range: [0, 14],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 14}
+        }
+      },
+      right: {
+        type: "Identifier",
+        name: "d",
+        range: [17, 18],
+        loc: {
+          start: {line: 1, column: 17},
+          end: {line: 1, column: 18}
+        }
+      },
+      range: [0, 18],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 18}
+      }
+    },
+    range: [0, 18],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 18}
+    }
+  }],
+  range: [0, 18],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 18}
+  }
+}, {ecmaVersion: 6});
+
+test("var [...a] = b", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ArrayPattern",
+        elements: [{
+          type: "SpreadElement",
+          argument: {
+            type: "Identifier",
+            name: "a",
+            range: [8, 9],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 9}
+            }
+          },
+          range: [5, 9],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 9}
+          }
+        }],
+        range: [4, 10],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 10}
+        }
+      },
+      init: {
+        type: "Identifier",
+        name: "b",
+        range: [13, 14],
+        loc: {
+          start: {line: 1, column: 13},
+          end: {line: 1, column: 14}
+        }
+      },
+      range: [4, 14],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 14}
+      }
+    }],
+    kind: "var",
+    range: [0, 14],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 14}
+    }
+  }],
+  range: [0, 14],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 14}
+  }
+}, {ecmaVersion: 6});
+
+test("var [a, ...b] = c", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          {
+            type: "SpreadElement",
+            argument: {
+              type: "Identifier",
+              name: "b",
+              range: [11, 12],
+              loc: {
+                start: {line: 1, column: 11},
+                end: {line: 1, column: 12}
+              }
+            },
+            range: [8, 12],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 12}
+            }
+          }
+        ],
+        range: [4, 13],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 13}
+        }
+      },
+      init: {
+        type: "Identifier",
+        name: "c",
+        range: [16, 17],
+        loc: {
+          start: {line: 1, column: 16},
+          end: {line: 1, column: 17}
+        }
+      },
+      range: [4, 17],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 17}
+      }
+    }],
+    kind: "var",
+    range: [0, 17],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 17}
+    }
+  }],
+  range: [0, 17],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 17}
+  }
+}, {ecmaVersion: 6});
+
+test("var [{ a, b }, ...c] = d", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "ObjectPattern",
+            properties: [
+              {
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "a",
+                  range: [7, 8],
+                  loc: {
+                    start: {line: 1, column: 7},
+                    end: {line: 1, column: 8}
+                  }
+                },
+                value: {
+                  type: "Identifier",
+                  name: "a",
+                  range: [7, 8],
+                  loc: {
+                    start: {line: 1, column: 7},
+                    end: {line: 1, column: 8}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: true,
+                computed: false,
+                range: [7, 8],
+                loc: {
+                  start: {line: 1, column: 7},
+                  end: {line: 1, column: 8}
+                }
+              },
+              {
+                type: "Property",
+                key: {
+                  type: "Identifier",
+                  name: "b",
+                  range: [10, 11],
+                  loc: {
+                    start: {line: 1, column: 10},
+                    end: {line: 1, column: 11}
+                  }
+                },
+                value: {
+                  type: "Identifier",
+                  name: "b",
+                  range: [10, 11],
+                  loc: {
+                    start: {line: 1, column: 10},
+                    end: {line: 1, column: 11}
+                  }
+                },
+                kind: "init",
+                method: false,
+                shorthand: true,
+                computed: false,
+                range: [10, 11],
+                loc: {
+                  start: {line: 1, column: 10},
+                  end: {line: 1, column: 11}
+                }
+              }
+            ],
+            range: [5, 13],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 13}
+            }
+          },
+          {
+            type: "SpreadElement",
+            argument: {
+              type: "Identifier",
+              name: "c",
+              range: [18, 19],
+              loc: {
+                start: {line: 1, column: 18},
+                end: {line: 1, column: 19}
+              }
+            },
+            range: [15, 19],
+            loc: {
+              start: {line: 1, column: 15},
+              end: {line: 1, column: 19}
+            }
+          }
+        ],
+        range: [4, 20],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 20}
+        }
+      },
+      init: {
+        type: "Identifier",
+        name: "d",
+        range: [23, 24],
+        loc: {
+          start: {line: 1, column: 23},
+          end: {line: 1, column: 24}
+        }
+      },
+      range: [4, 24],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 24}
+      }
+    }],
+    kind: "var",
+    range: [0, 24],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 24}
+    }
+  }],
+  range: [0, 24],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 24}
+  }
+}, {ecmaVersion: 6});
+
+test("var [a, ...[b, c]] = d", {
+  type: "Program",
+  body: [{
+    type: "VariableDeclaration",
+    declarations: [{
+      type: "VariableDeclarator",
+      id: {
+        type: "ArrayPattern",
+        elements: [
+          {
+            type: "Identifier",
+            name: "a",
+            range: [5, 6],
+            loc: {
+              start: {line: 1, column: 5},
+              end: {line: 1, column: 6}
+            }
+          },
+          {
+            type: "SpreadElement",
+            argument: {
+              type: "ArrayPattern",
+              elements: [
+                {
+                  type: "Identifier",
+                  name: "b",
+                  range: [12, 13],
+                  loc: {
+                    start: {line: 1, column: 12},
+                    end: {line: 1, column: 13}
+                  }
+                },
+                {
+                  type: "Identifier",
+                  name: "c",
+                  range: [15, 16],
+                  loc: {
+                    start: {line: 1, column: 15},
+                    end: {line: 1, column: 16}
+                  }
+                }
+              ],
+              range: [11, 17],
+              loc: {
+                start: {line: 1, column: 11},
+                end: {line: 1, column: 17}
+              }
+            },
+            range: [8, 17],
+            loc: {
+              start: {line: 1, column: 8},
+              end: {line: 1, column: 17}
+            }
+          }
+        ],
+        range: [4, 18],
+        loc: {
+          start: {line: 1, column: 4},
+          end: {line: 1, column: 18}
+        }
+      },
+      init: {
+        type: "Identifier",
+        name: "d",
+        range: [21, 22],
+        loc: {
+          start: {line: 1, column: 21},
+          end: {line: 1, column: 22}
+        }
+      },
+      range: [4, 22],
+      loc: {
+        start: {line: 1, column: 4},
+        end: {line: 1, column: 22}
+      }
+    }],
+    kind: "var",
+    range: [0, 22],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 22}
+    }
+  }],
+  range: [0, 22],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 22}
+  }
+}, {ecmaVersion: 6});
+
+test("func(...a)", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "CallExpression",
+      callee: {
+        type: "Identifier",
+        name: "func",
+        range: [0, 4],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 4}
+        }
+      },
+      arguments: [{
+        type: "SpreadElement",
+        argument: {
+          type: "Identifier",
+          name: "a",
+          range: [8, 9],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 9}
+          }
+        },
+        range: [5, 9],
+        loc: {
+          start: {line: 1, column: 5},
+          end: {line: 1, column: 9}
+        }
+      }],
+      range: [0, 10],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 10}
+      }
+    },
+    range: [0, 10],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 10}
+    }
+  }],
+  range: [0, 10],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 10}
+  }
+}, {ecmaVersion: 6});
+
+test("func(a, ...b)", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "CallExpression",
+      callee: {
+        type: "Identifier",
+        name: "func",
+        range: [0, 4],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 4}
+        }
+      },
+      arguments: [
+        {
+          type: "Identifier",
+          name: "a",
+          range: [5, 6],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 6}
+          }
+        },
+        {
+          type: "SpreadElement",
+          argument: {
+            type: "Identifier",
+            name: "b",
+            range: [11, 12],
+            loc: {
+              start: {line: 1, column: 11},
+              end: {line: 1, column: 12}
+            }
+          },
+          range: [8, 12],
+          loc: {
+            start: {line: 1, column: 8},
+            end: {line: 1, column: 12}
+          }
+        }
+      ],
+      range: [0, 13],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 13}
+      }
+    },
+    range: [0, 13],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 13}
+    }
+  }],
+  range: [0, 13],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 13}
+  }
+}, {ecmaVersion: 6});
+
+// Harmony Invalid syntax
+
+testFail("0o", "Unexpected token (1:3)", {ecmaVersion: 6});
+
+testFail("0o1a", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0o9", "Unexpected token (1:3)", {ecmaVersion: 6});
+
+testFail("0o18", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0O", "Unexpected token (1:3)", {ecmaVersion: 6});
+
+testFail("0O1a", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0O9", "Unexpected token (1:3)", {ecmaVersion: 6});
+
+testFail("0O18", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0b", "Unexpected token (1:3)", {ecmaVersion: 6});
+
+testFail("0b1a", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0b9", "Unexpected token (1:3)", {ecmaVersion: 6});
+
+testFail("0b18", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0b12", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0B", "Unexpected token (1:3)", {ecmaVersion: 6});
+
+testFail("0B1a", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0B9", "Unexpected token (1:3)", {ecmaVersion: 6});
+
+testFail("0B18", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("0B12", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("\"\\u{110000}\"", "Unexpected token (1:12)", {ecmaVersion: 6});
+
+testFail("\"\\u{}\"", "Unexpected token (1:5)", {ecmaVersion: 6});
+
+testFail("\"\\u{FFFF\"", "Unexpected token (1:10)", {ecmaVersion: 6});
+
+testFail("\"\\u{FFZ}\"", "Unexpected token (1:8)", {ecmaVersion: 6});
+
+testFail("[v] += ary", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("[2] = 42", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("({ obj:20 }) = 42", "Unexpected token (1:13)", {ecmaVersion: 6});
+
+testFail("( { get x() {} } ) = 0", "Unexpected token (1:19)", {ecmaVersion: 6});
+
+testFail("x \n is y", "Unexpected token (2:5)", {ecmaVersion: 6});
+
+testFail("x \n isnt y", "Unexpected token (2:7)", {ecmaVersion: 6});
+
+testFail("function default() {}", "Unexpected token (1:10)", {ecmaVersion: 6});
+
+testFail("function hello() {'use strict'; ({ i: 10, s(eval) { } }); }", "Unexpected token (1:45)", {ecmaVersion: 6});
+
+testFail("function a() { \"use strict\"; ({ b(t, t) { } }); }", "Unexpected token (1:38)", {ecmaVersion: 6});
+
+testFail("var super", "Unexpected token (1:5)", {ecmaVersion: 6});
+
+testFail("var default", "Unexpected token (1:5)", {ecmaVersion: 6});
+
+testFail("let default", "Unexpected token (1:5)", {ecmaVersion: 6});
+
+testFail("const default", "Unexpected token (1:7)", {ecmaVersion: 6});
+
+testFail("({ v: eval }) = obj", "Unexpected token (1:14)", {ecmaVersion: 6});
+
+testFail("({ v: arguments }) = obj", "Unexpected token (1:19)", {ecmaVersion: 6});
+
+testFail("for (var i = function() { return 10 in [] } in list) process(x);", "Unexpected token (1:45)", {ecmaVersion: 6});
+
+testFail("for (let x = 42 in list) process(x);", "Unexpected token (1:17)", {ecmaVersion: 6});
+
+testFail("for (let x = 42 of list) process(x);", "Unexpected token (1:17)", {ecmaVersion: 6});
+
+testFail("module\n\"crypto\" {}", "Unexpected token (1:7)", {ecmaVersion: 6});
+
+testFail("module foo from bar", "Unexpected token (1:20)", {ecmaVersion: 6});
+
+testFail("module 42", "Unexpected token (1:8)", {ecmaVersion: 6});
+
+testFail("module foo bar", "Unexpected token (1:12)", {ecmaVersion: 6});
+
+testFail("module \"crypto\" { module \"e\" {} }", "Unexpected token (1:18)", {ecmaVersion: 6});
+
+testFail("module \"x\" { export * from foo }", "Unexpected token (1:31)", {ecmaVersion: 6});
+
+testFail("import foo", "Unexpected token (1:11)", {ecmaVersion: 6});
+
+testFail("import { foo, bar }", "Unexpected token (1:20)", {ecmaVersion: 6});
+
+testFail("import foo from bar", "Unexpected token (1:20)", {ecmaVersion: 6});
+
+testFail("((a)) => 42", "Unexpected token (1:7)", {ecmaVersion: 6});
+
+testFail("(a, (b)) => 42", "Unexpected token (1:10)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; (eval = 10) => 42", "Unexpected token (1:16)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; eval => 42", "Unexpected token (1:25)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; arguments => 42", "Unexpected token (1:30)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; (eval, a) => 42", "Unexpected token (1:30)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; (arguments, a) => 42", "Unexpected token (1:35)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; (eval, a = 10) => 42", "Unexpected token (1:35)", {ecmaVersion: 6});
+
+testFail("(a, a) => 42", "Unexpected token (1:7)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; (a, a) => 42", "Unexpected token (1:21)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; (a) => 00", "Unexpected token (1:22)", {ecmaVersion: 6});
+
+testFail("() <= 42", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("(10) => 00", "Unexpected token (1:6)", {ecmaVersion: 6});
+
+testFail("(10, 20) => 00", "Unexpected token (1:10)", {ecmaVersion: 6});
+
+testFail("yield v", "Unexpected token (1:7)", {ecmaVersion: 6});
+
+testFail("yield 10", "Unexpected token (1:7)", {ecmaVersion: 6});
+
+test("yield* 10", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "BinaryExpression",
+      operator: "*",
+      left: {
+        type: "Identifier",
+        name: "yield",
+        range: [0, 5],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 5}
+        }
+      },
+      right: {
+        type: "Literal",
+        value: 10,
+        raw: "10",
+        range: [7, 9],
+        loc: {
+          start: {line: 1, column: 7},
+          end: {line: 1, column: 9}
+        }
+      },
+      range: [0, 9],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 9}
+      }
+    },
+    range: [0, 9],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 9}
+    }
+  }],
+  range: [0, 9],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 9}
+  }
+}, {ecmaVersion: 6});
+
+test("e => yield* 10", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "ArrowFunctionExpression",
+      id: null,
+      params: [{
+        type: "Identifier",
+        name: "e",
+        range: [0, 1],
+        loc: {
+          start: {line: 1, column: 0},
+          end: {line: 1, column: 1}
+        }
+      }],
+      defaults: [],
+      body: {
+        type: "BinaryExpression",
+        operator: "*",
+        left: {
+          type: "Identifier",
+          name: "yield",
+          range: [5, 10],
+          loc: {
+            start: {line: 1, column: 5},
+            end: {line: 1, column: 10}
+          }
+        },
+        right: {
+          type: "Literal",
+          value: 10,
+          raw: "10",
+          range: [12, 14],
+          loc: {
+            start: {line: 1, column: 12},
+            end: {line: 1, column: 14}
+          }
+        },
+        range: [5, 14],
+        loc: {
+          start: {line: 1, column: 5},
+          end: {line: 1, column: 14}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: true,
+      range: [0, 14],
+      loc: {
+        start: {line: 1, column: 0},
+        end: {line: 1, column: 14}
+      }
+    },
+    range: [0, 14],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 14}
+    }
+  }],
+  range: [0, 14],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 14}
+  }
+}, {ecmaVersion: 6});
+
+testFail("(function () { yield 10 })", "Unexpected token (1:22)", {ecmaVersion: 6});
+
+test("(function () { yield* 10 })", {
+  type: "Program",
+  body: [{
+    type: "ExpressionStatement",
+    expression: {
+      type: "FunctionExpression",
+      id: null,
+      params: [],
+      defaults: [],
+      body: {
+        type: "BlockStatement",
+        body: [{
+          type: "ExpressionStatement",
+          expression: {
+            type: "BinaryExpression",
+            operator: "*",
+            left: {
+              type: "Identifier",
+              name: "yield",
+              range: [15, 20],
+              loc: {
+                start: {line: 1, column: 15},
+                end: {line: 1, column: 20}
+              }
+            },
+            right: {
+              type: "Literal",
+              value: 10,
+              raw: "10",
+              range: [22, 24],
+              loc: {
+                start: {line: 1, column: 22},
+                end: {line: 1, column: 24}
+              }
+            },
+            range: [15, 24],
+            loc: {
+              start: {line: 1, column: 15},
+              end: {line: 1, column: 24}
+            }
+          },
+          range: [15, 25],
+          loc: {
+            start: {line: 1, column: 15},
+            end: {line: 1, column: 25}
+          }
+        }],
+        range: [13, 26],
+        loc: {
+          start: {line: 1, column: 13},
+          end: {line: 1, column: 26}
+        }
+      },
+      rest: null,
+      generator: false,
+      expression: false,
+      range: [1, 26],
+      loc: {
+        start: {line: 1, column: 1},
+        end: {line: 1, column: 26}
+      }
+    },
+    range: [0, 27],
+    loc: {
+      start: {line: 1, column: 0},
+      end: {line: 1, column: 27}
+    }
+  }],
+  range: [0, 27],
+  loc: {
+    start: {line: 1, column: 0},
+    end: {line: 1, column: 27}
+  }
+}, {ecmaVersion: 6});
+
+testFail("(function() { \"use strict\"; f(yield v) })", "Unexpected token (1:36)", {ecmaVersion: 6});
+
+testFail("var obj = { *test** }", "Unexpected token (1:18)", {ecmaVersion: 6});
+
+testFail("class A extends yield B { }", "Unexpected token (1:23)", {ecmaVersion: 6});
+
+testFail("class default", "Unexpected token (1:7)", {ecmaVersion: 6});
+
+testFail("`test", "Unexpected token (1:6)", {ecmaVersion: 6});
+
+testFail("switch `test`", "Unexpected token (1:8)", {ecmaVersion: 6});
+
+testFail("`hello ${10 `test`", "Unexpected token (1:19)", {ecmaVersion: 6});
+
+testFail("`hello ${10;test`", "Unexpected token (1:12)", {ecmaVersion: 6});
+
+testFail("function a() 1 // expression closure is not supported", "Unexpected token (1:14)", {ecmaVersion: 6});
+
+testFail("[a,b if (a)] // (a,b)", "Unexpected token (1:5)", {ecmaVersion: 6});
+
+testFail("for each (let x in {}) {};", "Unexpected token (1:4)", {ecmaVersion: 6});
+
+testFail("[x for (let x in [])]", "Unexpected token (1:21)", {ecmaVersion: 6});
+
+testFail("[x for (const x in [])]", "Unexpected token (1:23)", {ecmaVersion: 6});
+
+testFail("[x for (var x in [])]", "Unexpected token (1:21)", {ecmaVersion: 6});
+
+testFail("[a,b for (a in [])] // (a,b) ", "Unexpected token (1:5)", {ecmaVersion: 6});
+
+testFail("[x if (x)]  // block required", "Unexpected token (1:11)", {ecmaVersion: 6});
+
+testFail("var a = [x if (x)]", "Unexpected token (1:19)", {ecmaVersion: 6});
+
+testFail("[for (x in [])]  // no espression", "Unexpected token (1:16)", {ecmaVersion: 6});
+
+testFail("({ \"chance\" }) = obj", "Unexpected token (1:13)", {ecmaVersion: 6});
+
+testFail("({ 42 }) = obj", "Unexpected token (1:7)", {ecmaVersion: 6});
+
+testFail("function f(a, ...b, c)", "Unexpected token (1:19)", {ecmaVersion: 6});
+
+testFail("function f(a, ...b = 0)", "Unexpected token (1:20)", {ecmaVersion: 6});
+
+testFail("function x(...{ a }){}", "Unexpected token (1:15)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; function x(a, { a }){}", "Unexpected token (1:37)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; function x({ b: { a } }, [{ b: { a } }]){}", "Unexpected token (1:57)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; function x(a, ...[a]){}", "Unexpected token (1:38)", {ecmaVersion: 6});
+
+testFail("(...a, b) => {}", "Unexpected token (1:6)", {ecmaVersion: 6});
+
+testFail("([ 5 ]) => {}", "Unexpected token (1:8)", {ecmaVersion: 6});
+
+testFail("({ 5 }) => {}", "Unexpected token (1:6)", {ecmaVersion: 6});
+
+testFail("(...[ 5 ]) => {}", "Unexpected token (1:10)", {ecmaVersion: 6});
+
+testFail("[...{ a }] = b", "Unexpected token (1:11)", {ecmaVersion: 6});
+
+testFail("[...a, b] = c", "Unexpected token (1:6)", {ecmaVersion: 6});
+
+testFail("func(...a, b)", "Unexpected token (1:10)", {ecmaVersion: 6});
+
+testFail("({ t(eval) { \"use strict\"; } });", "Unexpected token (1:6)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; `${test}\\02`;", "Unexpected token (1:22)", {ecmaVersion: 6});
+
+testFail("[...a, ] = b", "Unexpected token (1:6)", {ecmaVersion: 6});
+
+testFail("if (b,...a, );", "Unexpected token (1:11)", {ecmaVersion: 6});
+
+testFail("(b, ...a)", "Unexpected token (1:9)", {ecmaVersion: 6});
+
+testFail("module \"Universe\" { ;  ;  ", "Unexpected token (1:27)", {ecmaVersion: 6});
+
+testFail("switch (cond) { case 10: let a = 20; ", "Unexpected token (1:38)", {ecmaVersion: 6});
+
+testFail("\"use strict\"; (eval) => 42", "Unexpected token (1:27)", {ecmaVersion: 6});
+
+testFail("(eval) => { \"use strict\"; 42 }", "Unexpected token (1:31)", {ecmaVersion: 6});
+
+testFail("({ get test() { } }) => 42", "Unexpected token (1:21)", {ecmaVersion: 6});
diff --git a/test/tests.js b/test/tests.js
index 0b47ada211..0bf82d5fcf 100644
--- a/test/tests.js
+++ b/test/tests.js
@@ -28982,7 +28982,7 @@ testFail("for(const x = 0;;);", "Unexpected token (1:4)", {ecmaVersion: 6});
       Cat.prototype.roar = function(message) {
         return 'MEOOWW: ' + /*stuff*/ message;
       };
-    }.toString(),
+    }.toString().replace(/\r\n/g, '\n'),
     function assert(ast) {
       if (actualComments.length !== expectedComments.length) {
         return JSON.stringify(actualComments) + " !== " + JSON.stringify(expectedComments);