Fix GC-unsafe corner case in bit-not on ARM

test/mjsunit/bit-not.js

Index: test/mjsunit/bit-not.js
===================================================================
--- test/mjsunit/bit-not.js	(revision 8053)
+++ test/mjsunit/bit-not.js	(working copy)
@@ -68,6 +68,8 @@
 // the fast path and just use the slow path instead.
 function TryToGC() {
   var x = 0x40000000;
+  // Put in an eval to foil Crankshaft.
+  eval("");

[Lasse Reichstein, 2011/05/25 10:29:39]

Are we sure Crankshaft will never support eval? Especially with constant strings
(obvious inlining opportunity)?

[Erik Corry, 2011/05/25 10:34:40]

I will make it my mission to ensure that Crankshaft never supports eval :-)

   for (var i = 0; i < 1000000; i++) {
     assertEquals(~0x40000000, ~x);
   }