Turn some usages of NewArray with DeleteArray in the same scope into ScopedVector or SmartPointer.

src/utils.h

 // Copyright 2006-2008 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 394 matching lines @@
 };
 
 
 template <typename T>
 class ScopedVector : public Vector<T> {
  public:
   explicit ScopedVector(int length) : Vector<T>(NewArray<T>(length), length) { }
   ~ScopedVector() {
     DeleteArray(this->start());
   }
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(ScopedVector);
 };
 
 
 inline Vector<const char> CStrVector(const char* data) {
   return Vector<const char>(data, StrLength(data));
 }
 
 inline Vector<char> MutableCStrVector(char* data) {
   return Vector<char>(data, StrLength(data));
 }
@@ skipping 229 matching lines @@
 
   Dest dest;
   memcpy(&dest, &source, sizeof(dest));
   return dest;
 }
 
 } }  // namespace v8::internal
 
 
 #endif  // V8_UTILS_H_