The Tor Browser / file revision

 /// 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 ch10/10.4/10.4.2/10.4.2.1-1gs.js

  * @description Strict Mode - eval code cannot instantiate variable in the variable environment of the calling context that invoked the eval if the code of the calling context is strict code

  * @onlyStrict

  * @negative ^((?!NotEarlyError).)*$

  */

 "use strict";

 eval("var x = 7;");

 x = 9;

 throw NotEarlyError;