Reimplement stack manipulations for LiveEdit

src/frames.h

Index: src/frames.h
diff --git a/src/frames.h b/src/frames.h
index 102244c9ba2f81879b823b69ebfe4fd6c46fa324..02fc144d1529a32eccb729976d64278190ffbef6 100644
--- a/src/frames.h
+++ b/src/frames.h
@@ -317,6 +317,8 @@ class StandardFrame: public StackFrame {
 
   virtual void SetCallerFp(Address caller_fp);
 
+  void SetContext(Context* context);
+
   static StandardFrame* cast(StackFrame* frame) {
     ASSERT(frame->is_standard());
     return static_cast<StandardFrame*>(frame);
@@ -677,6 +679,10 @@ class StackFrameLocator BASE_EMBEDDED {
 // 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_