RFC: Switch to ast ids (instead of positions) for type feedback.

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 500 matching lines @@
   // GC support.
   virtual void Iterate(ObjectVisitor* v) const;
 
   // Return a list with JSFunctions of this frame.
   // The functions are ordered bottom-to-top (i.e. functions.last()
   // is the top-most activation)
   virtual void GetFunctions(List<JSFunction*>* functions);
 
   virtual void Summarize(List<FrameSummary>* frames);
 
-  DeoptimizationInputData* GetDeoptimizationData(int* deopt_index);
+  DeoptimizationInputData* GetDeoptimizationData(AstId* deopt_index);
 
  protected:
   explicit OptimizedFrame(StackFrameIterator* iterator)
       : JavaScriptFrame(iterator) { }
 
  private:
   friend class StackFrameIterator;
 };
 
 
@@ skipping 283 matching lines @@
 };
 
 
 // Reads all frames on the current stack and copies them into the current
 // zone memory.
 Vector<StackFrame*> CreateStackMap();
 
 } }  // namespace v8::internal
 
 #endif  // V8_FRAMES_H_