New attempt to make the allocation routines 64 bit clean....

test/mjsunit/math-abs.js

 // Copyright 2010 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
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-// Flags: --max-new-space-size=262144
+// Flags: --max-new-space-size=256
 
 function zero() {
   var x = 0.5;
   return (function() { return x - 0.5; })();
 }
 
 function test() {
   assertEquals(0, Math.abs(0));
   assertEquals(0, Math.abs(zero()));
   assertEquals(1/0, 1/Math.abs(-0));  // 0 == -0, so we use reciprocals.
@@ skipping 50 matching lines @@
   assertNaN(Math.abs([1, 2, 3]));
   assertEquals(42, Math.abs({valueOf: function() { return 42; } }));
   assertEquals(42, Math.abs({valueOf: function() { return -42; } }));
 }
 
 
 // Test in a loop to cover the custom IC and GC-related issues.
 for (var i = 0; i < 500; i++) {
   test();
 }