[Isolates] Merge 6700:7030 from bleeding_edge to isolates.

test/mjsunit/regress/regress-1145.js

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 34 matching lines @@
 function opt_me() {
   var x = 1;
   // Do lots of function calls and hope to be optimized.
   for (var i = 0; i < 1000000; i++) {
     x = f();
   }
   if (x == 0) fail();  // Hope to be inlined during optimization.
 }
 
 opt_me();