Replace 'operator*' with explicit 'get' method on SmartPointer

src/hydrogen-dce.cc

 // Copyright 2013 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 46 matching lines @@
 void HDeadCodeEliminationPhase::PrintLive(HValue* ref, HValue* instr) {
   HeapStringAllocator allocator;
   StringStream stream(&allocator);
   if (ref != NULL) {
     ref->PrintTo(&stream);
   } else {
     stream.Add("root ");
   }
   stream.Add(" -> ");
   instr->PrintTo(&stream);
-  PrintF("[MarkLive %s]\n", *stream.ToCString());
+  PrintF("[MarkLive %s]\n", stream.ToCString().get());
 }
 
 
 void HDeadCodeEliminationPhase::MarkLiveInstructions() {
   ZoneList<HValue*> worklist(10, zone());
 
   // Transitively mark all live instructions, starting from roots.
   for (int i = 0; i < graph()->blocks()->length(); ++i) {
     HBasicBlock* block = graph()->blocks()->at(i);
     for (HInstructionIterator it(block); !it.Done(); it.Advance()) {
@@ skipping 42 matching lines @@
     HPhi* phi = worklist.RemoveLast();
     HBasicBlock* block = phi->block();
     phi->DeleteAndReplaceWith(NULL);
     if (phi->HasMergedIndex()) {
       block->RecordDeletedPhi(phi->merged_index());
     }
   }
 }
 
 } }  // namespace v8::internal