[Isolates] Merge crankshaft (r5922 from bleeding_edge).

test/mjsunit/compiler/this-property-refs.js

 // Copyright 2010 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
 //       with the distribution.
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 //       from this software without specific prior written permission.
 //
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 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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-// Flags: --fast-compiler
-
 // Test references to properties of this.
 function Test() {
   this.a = 0;
   this.b = 1;
   this.c = 2;
   this.d = 3;
 }
 
 Test.prototype.test0 = function () {
   this.a = this.b;
@@ skipping 15 matching lines @@
 assertEquals(1, t.a);
 
 t.test1();
 assertEquals(2, t.a);
 assertEquals(2, t.b);
 
 t.test2();
 assertEquals(3, t.a);
 assertEquals(3, t.b);
 assertEquals(3, t.c);