Reimplement stack manipulations for LiveEdit

src/frames.h

 // Copyright 2006-2008 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 299 matching lines @@
   // Accessors.
   inline Object* context() const;
 
   // Access the expressions in the stack frame including locals.
   inline Object* GetExpression(int index) const;
   inline void SetExpression(int index, Object* value);
   int ComputeExpressionsCount() const;
 
   virtual void SetCallerFp(Address caller_fp);
 
+  void SetContext(Context* context);
+
   static StandardFrame* cast(StackFrame* frame) {
     ASSERT(frame->is_standard());
     return static_cast<StandardFrame*>(frame);
   }
 
  protected:
   explicit StandardFrame(StackFrameIterator* iterator)
       : StackFrame(iterator) { }
 
   virtual void ComputeCallerState(State* state) const;
@@ skipping 340 matching lines @@
 
  private:
   StackFrameIterator iterator_;
 };
 
 
 // Reads all frames on the current stack and copies them into the current
 // zone memory.
 Vector<StackFrame*> CreateStackMap();
 
+// Returns memory size of a particular type of stack frame (for object
+// memory manipulations).
+int GetStackFrameObjectSize(StackFrame* frame);
+
 } }  // namespace v8::internal
 
 #endif  // V8_FRAMES_H_