Various API-related simplifications.

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 533 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<Context> context);
-  inline bool LeaveContext(Handle<Context> context);
+  inline void LeaveContext();
+  inline bool LastEnteredContextWas(Handle<Context> context);
 
   // Returns the last entered context or an empty handle if no
   // contexts have been entered.
   inline Handle<Context> 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<Context> context) {
   entered_contexts_.Add(*context);
 }
 
 
-bool HandleScopeImplementer::LeaveContext(Handle<Context> context) {
-  if (entered_contexts_.is_empty()) return false;
-  // TODO(dcarney): figure out what's wrong here
-  // if (entered_contexts_.last() != *context) return false;
+void HandleScopeImplementer::LeaveContext() {
   entered_contexts_.RemoveLast();
-  return true;
 }
 
 
+bool HandleScopeImplementer::LastEnteredContextWas(Handle<Context> context) {
+  return !entered_contexts_.is_empty() && entered_contexts_.last() == *context;
+}
+
+
 Handle<Context> HandleScopeImplementer::LastEnteredContext() {
   if (entered_contexts_.is_empty()) return Handle<Context>::null();
   return Handle<Context>(entered_contexts_.last());
 }
 
 
 // If there's a spare block, use it for growing the current scope.
 internal::Object** HandleScopeImplementer::GetSpareOrNewBlock() {
   internal::Object** block = (spare_ != NULL) ?
       spare_ :
@@ skipping 50 matching lines @@
     stress_type_ = stress_type;
   }
 
  private:
   static v8::Testing::StressType stress_type_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_API_H_