diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.1/11.1.5/11.1.5-2gs.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5-2gs.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+/// Copyright (c) 2012 Ecma International.  All rights reserved. 
+/// Ecma International makes this code available under the terms and conditions set
+/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
+/// "Use Terms").   Any redistribution of this code must retain the above 
+/// copyright and this notice and otherwise comply with the Use Terms.
+/**
+ * @path ch11/11.1/11.1.5/11.1.5-2gs.js
+ * @description Strict Mode - SyntaxError is thrown when eval code contains an ObjectLiteral with more than one definition of any data property
+ * @onlyStrict
+ * @negative ^((?!NotEarlyError).)*$
+ */
+"use strict";
+throw NotEarlyError;
+var obj = { _11_1_5_2_gs: 10, _11_1_5_2_gs: 10 };