Removed a bunch of GetExistingThreadLocal calls by threading the Isolate.

src/type-info.cc

 // Copyright 2012 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 61 matching lines @@
 
 
 static uint32_t IdToKey(TypeFeedbackId ast_id) {
   return static_cast<uint32_t>(ast_id.ToInt());
 }
 
 
 Handle<Object> TypeFeedbackOracle::GetInfo(TypeFeedbackId ast_id) {
   int entry = dictionary_->FindEntry(IdToKey(ast_id));
   return entry != UnseededNumberDictionary::kNotFound
-      ? Handle<Object>(dictionary_->ValueAt(entry))
+      ? Handle<Object>(dictionary_->ValueAt(entry), isolate_)
       : Handle<Object>::cast(isolate_->factory()->undefined_value());
 }
 
 
 bool TypeFeedbackOracle::LoadIsUninitialized(Property* expr) {
   Handle<Object> map_or_code = GetInfo(expr->PropertyFeedbackId());
   if (map_or_code->IsMap()) return false;
   if (map_or_code->IsCode()) {
     Handle<Code> code = Handle<Code>::cast(map_or_code);
     return code->is_inline_cache_stub() && code->ic_state() == UNINITIALIZED;
@@ skipping 618 matching lines @@
   USE(maybe_result);
 #ifdef DEBUG
   Object* result = NULL;
   // Dictionary has been allocated with sufficient size for all elements.
   ASSERT(maybe_result->ToObject(&result));
   ASSERT(*dictionary_ == result);
 #endif
 }
 
 } }  // namespace v8::internal