Update the mozilla tests to new version (as of 2010-06-29).

mozilla-tests/js1_8/genexps/regress-380237-01.js

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
@@ skipping 207 matching lines @@
     // XXX Math.min etc. should work on arrays (lists or tuples in Python) as well as numbers
     let a = [values[s].length + s for (s in squares) if (values[s].length > 1)].sort()
     let s = a[0].slice(-2)
 
     return some(search(assign(values.copy(), s, d)) for (d in values[s]))
 }
 
 hard = '4.....8.5.3..........7......2.....6.....8.4......1.......6.3.7.5..2.....1.4......'
 
 print_board(search(parse_grid(hard)))
+
+  delete Object.prototype.copy;
  
   reportCompare(expect, actual, summary);
 
   exitFunc ('test');
 }