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

src/heap-snapshot-generator.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 1836 matching lines @@
                                           int field_offset) {
   ASSERT(parent_entry == GetEntry(parent_obj)->index());
   HeapEntry* child_entry = GetEntry(child_obj);
   if (child_entry != NULL) {
     HeapGraphEdge::Type type =
         reference_name->IsSymbol() || String::cast(reference_name)->length() > 0
             ? HeapGraphEdge::kProperty : HeapGraphEdge::kInternal;
     const char* name = name_format_string != NULL && reference_name->IsString()
         ? names_->GetFormatted(
               name_format_string,
-              *String::cast(reference_name)->ToCString(
-                  DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL)) :
+              String::cast(reference_name)->ToCString(
+                  DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL).get()) :
         names_->GetName(reference_name);
 
     filler_->SetNamedReference(type,
                                parent_entry,
                                name,
                                child_entry);
     IndexedReferencesExtractor::MarkVisitedField(parent_obj, field_offset);
   }
 }
 
@@ skipping 1085 matching lines @@
   writer_->AddString("\"<dummy>\"");
   for (int i = 1; i < sorted_strings.length(); ++i) {
     writer_->AddCharacter(',');
     SerializeString(sorted_strings[i]);
     if (writer_->aborted()) return;
   }
 }
 
 
 } }  // namespace v8::internal