remove Isolate::GetCurrent from Context api functions

src/api.h

 // 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 525 matching lines @@
 
 
   inline internal::Object** GetSpareOrNewBlock();
   inline void DeleteExtensions(internal::Object** prev_limit);
 
   inline void IncrementCallDepth() {call_depth_++;}
   inline void DecrementCallDepth() {call_depth_--;}
   inline bool CallDepthIsZero() { return call_depth_ == 0; }
 
   inline void EnterContext(Handle<Object> context);
-  inline bool LeaveLastContext();
+  inline bool LeaveContext(Handle<Object> context);
 
   // Returns the last entered context or an empty handle if no
   // contexts have been entered.
   inline Handle<Object> LastEnteredContext();
 
   inline void SaveContext(Context* context);
   inline Context* RestoreContext();
   inline bool HasSavedContexts();
 
   inline List<internal::Object**>* blocks() { return &blocks_; }
@@ skipping 71 matching lines @@
 bool HandleScopeImplementer::HasSavedContexts() {
   return !saved_contexts_.is_empty();
 }
 
 
 void HandleScopeImplementer::EnterContext(Handle<Object> context) {
   entered_contexts_.Add(context);
 }
 
 
-bool HandleScopeImplementer::LeaveLastContext() {
+bool HandleScopeImplementer::LeaveContext(Handle<Object> context) {
   if (entered_contexts_.is_empty()) return false;
+  // TODO(dcarney): figure out what's wrong here
+  // if (*entered_contexts_.last() != *context) return false;
   entered_contexts_.RemoveLast();
   return true;
 }
 
 
 Handle<Object> HandleScopeImplementer::LastEnteredContext() {
   if (entered_contexts_.is_empty()) return Handle<Object>::null();
   return entered_contexts_.last();
 }
 
@@ skipping 55 matching lines @@
     stress_type_ = stress_type;
   }
 
  private:
   static v8::Testing::StressType stress_type_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_API_H_