Merge bleeding edge up to 8774 into the GC branch.

test/mjsunit/undeletable-functions.js

Index: test/mjsunit/undeletable-functions.js
===================================================================
--- test/mjsunit/undeletable-functions.js	(revision 8778)
+++ test/mjsunit/undeletable-functions.js	(working copy)
@@ -76,6 +76,8 @@
   "execScript"];
 CheckEcmaSemantics(this, array, "Global");
 CheckReadOnlyAttr(this, "Infinity");
+CheckReadOnlyAttr(this, "NaN");
+CheckReadOnlyAttr(this, "undefined");
 
 array = ["exec", "test", "toString", "compile"];
 CheckEcmaSemantics(RegExp.prototype, array, "RegExp prototype");
@@ -189,7 +191,7 @@
   assertFalse(deleted, "delete operator returned true: " + prop);
   assertTrue(type.hasOwnProperty(prop), "not there after delete: " + prop);
   type[prop] = "foo";
-  assertEquals("foo", type[prop], "overwritable: " + prop);
+  assertEquals(old, type[prop], "overwritable: " + prop);
 }
 
 print("OK");