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 ch11/11.4/11.4.1/11.4.1-5-a-5gs.js

  * @description Strict Mode - SyntaxError is thrown when deleting a variable which is primitive type(boolean)

  * @onlyStrict

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

  */

 "use strict";

 var _11_4_1_5 = 7;

 throw NotEarlyError;

 delete _11_4_1_5;