Train wreck reduction.

Furthermore, this tiny patch avoids direct access to the context_ field.

Review URL: https://codereview.chromium.org/13772004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14165 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ic.cc

@@ -2386,8 +2386,7 @@ RUNTIME_FUNCTION(MaybeObject*, UnaryOp_Patch) {
     ic.patch(*code);
   }
 
-  Handle<JSBuiltinsObject> builtins = Handle<JSBuiltinsObject>(
-      isolate->thread_local_top()->context_->builtins(), isolate);
+  Handle<JSBuiltinsObject> builtins(isolate->js_builtins_object());
   Object* builtin = NULL;  // Initialization calms down the compiler.
   switch (op) {
     case Token::SUB:
@@ -2524,8 +2523,7 @@ RUNTIME_FUNCTION(MaybeObject*, BinaryOp_Patch) {
     }
   }
 
-  Handle<JSBuiltinsObject> builtins = Handle<JSBuiltinsObject>(
-      isolate->thread_local_top()->context_->builtins(), isolate);
+  Handle<JSBuiltinsObject> builtins(isolate->js_builtins_object());
   Object* builtin = NULL;  // Initialization calms down the compiler.
   switch (op) {
     case Token::ADD:

src/isolate.cc

@@ -1508,14 +1508,12 @@ bool Isolate::is_out_of_memory() {
 
 
 Handle<Context> Isolate::native_context() {
-  GlobalObject* global = thread_local_top()->context_->global_object();
-  return Handle<Context>(global->native_context());
+  return Handle<Context>(context()->global_object()->native_context());
 }
 
 
 Handle<Context> Isolate::global_context() {
-  GlobalObject* global = thread_local_top()->context_->global_object();
-  return Handle<Context>(global->global_context());
+  return Handle<Context>(context()->global_object()->global_context());
 }