remove es20xx prefixes from plugins and rename folders (#6575)

packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/array-unpack-optimisation/actual.js

@@ -0,0 +1,13 @@
+var [a, b] = [1, 2];
+var [[a, b]] = [[1, 2]];
+var [a, b, ...c] = [1, 2, 3, 4];
+var [[a, b, ...c]] = [[1, 2, 3, 4]];
+
+var [a, b] = [1, 2, 3];
+var [[a, b]] = [[1, 2, 3]];
+var [a, b] = [a, b];
+[a[0], a[1]] = [a[1], a[0]];
+var [a, b] = [...foo, bar];
+var [a, b] = [foo(), bar];
+var [a, b] = [clazz.foo(), bar];
+var [a, b] = [clazz.foo, bar];

packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/array-unpack-optimisation/expected.js

@@ -0,0 +1,36 @@
+var a = 1,
+    b = 2;
+var a = 1,
+    b = 2;
+var a = 1,
+    b = 2,
+    c = [3, 4];
+var a = 1,
+    b = 2,
+    c = [3, 4];
+var _ref = [1, 2, 3],
+    a = _ref[0],
+    b = _ref[1];
+var _ref2 = [1, 2, 3],
+    a = _ref2[0],
+    b = _ref2[1];
+var _ref3 = [a, b],
+    a = _ref3[0],
+    b = _ref3[1];
+var _ref4 = [a[1], a[0]];
+a[0] = _ref4[0];
+a[1] = _ref4[1];
+
+var _ref5 = [].concat(babelHelpers.toConsumableArray(foo), [bar]),
+    a = _ref5[0],
+    b = _ref5[1];
+
+var _ref6 = [foo(), bar],
+    a = _ref6[0],
+    b = _ref6[1];
+var _ref7 = [clazz.foo(), bar],
+    a = _ref7[0],
+    b = _ref7[1];
+var _ref8 = [clazz.foo, bar],
+    a = _ref8[0],
+    b = _ref8[1];