Token stream iterator improvement

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 3182 matching lines @@
     // into the token objects array for IDENT or literal tokens).
     intptr_t ReadToken() {
       int64_t value = stream_.ReadUnsigned();
       ASSERT((value >= 0) && (value <= kIntptrMax));
       return static_cast<intptr_t>(value);
     }
 
     TokenStream& tokens_;
     ExternalTypedData& data_;
     ReadStream stream_;
-    GrowableObjectArray& token_objects_;
+    Array& token_objects_;
     Object& obj_;
     intptr_t cur_token_pos_;
     Token::Kind cur_token_kind_;
     intptr_t cur_token_obj_index_;
     Iterator::StreamType stream_type_;
   };
 
  private:
   void SetPrivateKey(const String& value) const;
 
@@ skipping 5011 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_