Experimental: for forward CFG edges, generate the code to merge to an...

test/mjsunit/this.js

 // Copyright 2008 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 17 matching lines @@
 function f() { return this; }
 
 assertFalse(this == null);  // the global object shouldn't be null or undefined
 assertEquals('[object global]', String(this));
 
 assertTrue(this === this);
 assertTrue(this === (function() { return this; })());
 assertTrue(this === f());
 
 var x = {}, y = {};
-x.f = y.f = f; 
+x.f = y.f = f;
 assertFalse(x === f());
 assertFalse(y === f());
 assertTrue(x === x.f());
 assertTrue(x === x[new String('f')]());
 assertTrue(y === y.f(), "y.f()");
 assertTrue(y === y[new String('f')]());
 assertFalse(x === y.f());
 assertFalse(y === x.f());