Clean up TranslationIterator and DeoptimizationInputDataPrint.

src/deoptimizer.h

 // Copyright 2011 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 479 matching lines @@
 
 class TranslationIterator BASE_EMBEDDED {
  public:
   TranslationIterator(ByteArray* buffer, int index)
       : buffer_(buffer), index_(index) {
     ASSERT(index >= 0 && index < buffer->length());
   }
 
   int32_t Next();
 
-  bool HasNext() const { return index_ >= 0; }
-
-  void Done() { index_ = -1; }
+  bool HasNext() const { return index_ < buffer_->length(); }
 
   void Skip(int n) {
     for (int i = 0; i < n; i++) Next();
   }
 
  private:
   ByteArray* buffer_;
   int index_;
 };
 
@@ skipping 202 matching lines @@
   Object** parameters_;
   Object** expression_stack_;
 
   friend class Deoptimizer;
 };
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_