Merge isolates to bleeding_edge.

src/register-allocator.cc

Index: src/register-allocator.cc
===================================================================
--- src/register-allocator.cc	(revision 7267)
+++ src/register-allocator.cc	(working copy)
@@ -40,19 +40,13 @@
 
 Result::Result(Register reg, TypeInfo info) {
   ASSERT(reg.is_valid() && !RegisterAllocator::IsReserved(reg));
-  CodeGeneratorScope::Current()->allocator()->Use(reg);
+  CodeGeneratorScope::Current(Isolate::Current())->allocator()->Use(reg);
   value_ = TypeField::encode(REGISTER)
       | TypeInfoField::encode(info.ToInt())
       | DataField::encode(reg.code_);
 }
 
 
-Result::ZoneObjectList* Result::ConstantList() {
-  static ZoneObjectList list(10);
-  return &list;
-}
-
-
 // -------------------------------------------------------------------------
 // RegisterAllocator implementation.