[deoptimizer] Use TranslationIterator for OptimizedFrame again.

src/frames.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_FRAMES_H_
 #define V8_FRAMES_H_
 
 #include "src/allocation.h"
 #include "src/handles.h"
 #include "src/safepoint-table.h"
@@ skipping 625 matching lines @@
   virtual int LookupExceptionHandlerInTable(
       int* stack_slots, HandlerTable::CatchPrediction* prediction);
 
   DeoptimizationInputData* GetDeoptimizationData(int* deopt_index);
 
  protected:
   inline explicit OptimizedFrame(StackFrameIteratorBase* iterator);
 
  private:
   friend class StackFrameIteratorBase;
+
+  Object* StackSlotAt(int index) const;
 };
 
 
 // Arguments adaptor frames are automatically inserted below
 // JavaScript frames when the actual number of parameters does not
 // match the formal number of parameters.
 class ArgumentsAdaptorFrame: public JavaScriptFrame {
  public:
   virtual Type type() const { return ARGUMENTS_ADAPTOR; }
 
@@ skipping 234 matching lines @@
 };
 
 
 // Reads all frames on the current stack and copies them into the current
 // zone memory.
 Vector<StackFrame*> CreateStackMap(Isolate* isolate, Zone* zone);
 
 } }  // namespace v8::internal
 
 #endif  // V8_FRAMES_H_