Merge pull request #294 from ljharb/promise_method_enumerability

`Promise` methods should not be enumerable

test/built-ins/Promise/all/S25.4.4.1_A1.3_T1.js

+// Copyright 2015 Jordan Harband.  All rights reserved.
+// See LICENSE for details.
+
+/*---
+info: Promise.all is not enumerable
+es6id: 25.4.4.1_A1.3_T1
+author: Jordan Harband
+description: Promise.all should be non-enumerable
+includes:
+  - propertyHelper.js
+---*/
+
+// CHECK#1
+verifyNotEnumerable(Promise, 'all');

test/built-ins/Promise/race/S25.4.4.3_A1.2_T1.js

+// Copyright 2015 Jordan Harband.  All rights reserved.
+// See LICENSE for details.
+
+/*---
+info: Promise.race is not enumerable
+es6id: 25.4.4.3_A1.2_T1
+author: Jordan Harband
+description: Promise.race should be non-enumerable
+includes:
+  - propertyHelper.js
+---*/
+
+// CHECK#1
+verifyNotEnumerable(Promise, 'race');

test/built-ins/Promise/reject/S25.4.4.4_A1.2_T1.js

+// Copyright 2015 Jordan Harband.  All rights reserved.
+// See LICENSE for details.
+
+/*---
+info: Promise.reject is not enumerable
+es6id: 25.4.4.4_A1.2_T1
+author: Jordan Harband
+description: Promise.reject should be non-enumerable
+includes:
+  - propertyHelper.js
+---*/
+
+// CHECK#1
+verifyNotEnumerable(Promise, 'reject');

test/built-ins/Promise/resolve/S25.4.4.5_A1.2_T1.js

+// Copyright 2015 Jordan Harband.  All rights reserved.
+// See LICENSE for details.
+
+/*---
+info: Promise.resolve is not enumerable
+es6id: 25.4.4.5_A1.2_T1
+author: Jordan Harband
+description: Promise.resolve should be non-enumerable
+includes:
+  - propertyHelper.js
+---*/
+
+// CHECK#1
+verifyNotEnumerable(Promise, 'resolve');