Use register arguments for RestParamAccessStub

src/runtime/runtime-scopes.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/ast/scopeinfo.h"
 #include "src/ast/scopes.h"
@@ skipping 641 matching lines @@
     elements->set(i, *--parameters);
   }
   return isolate->factory()->NewJSArrayWithElements(
       elements, FAST_ELEMENTS, num_elements, strength(language_mode));
 }
 
 
 RUNTIME_FUNCTION(Runtime_NewRestParam) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 4);
-  Object** parameters = reinterpret_cast<Object**>(args[0]);
-  CONVERT_SMI_ARG_CHECKED(num_params, 1);
+  CONVERT_SMI_ARG_CHECKED(num_params, 0);
+  Object** parameters = reinterpret_cast<Object**>(args[1]);
   CONVERT_SMI_ARG_CHECKED(rest_index, 2);
   CONVERT_SMI_ARG_CHECKED(language_mode, 3);
 
   return *NewRestParam(isolate, parameters, num_params, rest_index,
                        static_cast<LanguageMode>(language_mode));
 }
 
 
 RUNTIME_FUNCTION(Runtime_NewRestParamSlow) {
   HandleScope scope(isolate);
@@ skipping 540 matching lines @@
 
   // Lookup in the initial Object.prototype object.
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result,
       Object::GetProperty(isolate->initial_object_prototype(), key));
   return *result;
 }
 }  // namespace internal
 }  // namespace v8