add computed property names support

test/fixtures/computed-property-names/mixed/actual.js

@@ -0,0 +1,6 @@
+var obj = {
+  ["x" + foo]: "heh",
+  ["y" + bar]: "noo",
+  foo: "foo",
+  bar: "bar"
+};

test/fixtures/computed-property-names/mixed/expected.js

@@ -0,0 +1,8 @@
+var obj = function (obj) {
+  obj["x" + foo] = "heh";
+  obj["y" + bar] = "noo";
+  return obj;
+}({
+  foo: "foo",
+  bar: "bar"
+});

test/fixtures/computed-property-names/multiple/actual.js

@@ -0,0 +1,4 @@
+var obj = {
+  ["x" + foo]: "heh",
+  ["y" + bar]: "noo"
+};

test/fixtures/computed-property-names/multiple/expected.js

@@ -0,0 +1,5 @@
+var obj = function (obj) {
+  obj["x" + foo] = "heh";
+  obj["y" + bar] = "noo";
+  return obj;
+}({});

test/fixtures/computed-property-names/single/actual.js

@@ -0,0 +1,3 @@
+var obj = {
+  ["x" + foo]: "heh"
+};

test/fixtures/computed-property-names/single/expected.js

@@ -0,0 +1,4 @@
+var obj = function (obj) {
+  obj["x" + foo] = "heh";
+  return obj;
+}({});