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

src/builtins.cc

 // 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 359 matching lines @@
 
 static Object* CallJsBuiltin(const char* name,
                              BuiltinArguments<NO_EXTRA_ARGUMENTS> args) {
   HandleScope handleScope;
 
   Handle<Object> js_builtin =
       GetProperty(Handle<JSObject>(Top::global_context()->builtins()),
                   name);
   ASSERT(js_builtin->IsJSFunction());
   Handle<JSFunction> function(Handle<JSFunction>::cast(js_builtin));
-  Vector<Object**> argv(Vector<Object**>::New(args.length() - 1));
+  ScopedVector<Object**> argv(args.length() - 1);
   int n_args = args.length() - 1;
   for (int i = 0; i < n_args; i++) {
     argv[i] = args.at<Object>(i + 1).location();
   }
   bool pending_exception = false;
   Handle<Object> result = Execution::Call(function,
                                           args.receiver(),
                                           n_args,
                                           argv.start(),
                                           &pending_exception);
-  argv.Dispose();
   if (pending_exception) return Failure::Exception();
   return *result;
 }
 
 
 BUILTIN(ArrayPush) {
   Object* receiver = *args.receiver();
   FixedArray* elms = NULL;
   if (!IsJSArrayWithFastElements(receiver, &elms)) {
     return CallJsBuiltin("ArrayPush", args);
@@ skipping 1101 matching lines @@
       if (entry->contains(pc)) {
         return names_[i];
       }
     }
   }
   return NULL;
 }
 
 
 } }  // namespace v8::internal