add a "spec" transformer namespace for transformers that nicen up code and make it well, more spec compliant

test/fixtures/transformation/misc/property-literals/actual.js

@@ -1,3 +0,0 @@
-var obj = {
-  "foobar": "lol"
-};

test/fixtures/transformation/misc/property-literals/expected.js

@@ -1,5 +0,0 @@
-"use strict";
-
-var obj = {
-  foobar: "lol"
-};

test/fixtures/transformation/spec-no-duplicate-properties/identifiers/actual.js

@@ -0,0 +1 @@
+var obj = { a: 1, a: 2 };

test/fixtures/transformation/spec-no-duplicate-properties/literals/actual.js

@@ -0,0 +1 @@
+var obj = { "a": 1, "a": 2 };

test/fixtures/transformation/spec-no-duplicate-properties/mixed/actual.js

@@ -0,0 +1 @@
+var obj = { a: 1, "a": 2 };

test/fixtures/transformation/spec-no-duplicate-properties/options.json

@@ -0,0 +1,3 @@
+{
+  "throws": "Duplicate property key"
+}

test/fixtures/transformation/spec-no-for-in-of-assignment/in/actual.js

@@ -0,0 +1,3 @@
+for (var i = 0 in obj) {
+
+}

test/fixtures/transformation/spec-no-for-in-of-assignment/of/actual.js

@@ -0,0 +1,3 @@
+for (var i = 0 of obj) {
+
+}

test/fixtures/transformation/spec-no-for-in-of-assignment/options.json

@@ -0,0 +1,3 @@
+{
+  "throws": "No assignments allowed in for-in/of head"
+}

test/fixtures/transformation/spec/block-hoist-functions/exec.js

@@ -0,0 +1,5 @@
+function f() { return 1; }
+{
+  function f() { return 2; }
+}
+assert.equal(f(), 1);