Cleanup unnecessary duplication of runtime functions.

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/v8.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/frames-inl.h"
 #include "src/messages.h"
@@ skipping 1064 matching lines @@
     object = Handle<JSReceiver>(context->global_object());
   }
 
   RETURN_FAILURE_ON_EXCEPTION(
       isolate, Object::SetProperty(object, name, value, language_mode));
 
   return *value;
 }
 
 
-RUNTIME_FUNCTION(Runtime_GetArgumentsProperty) {
+RUNTIME_FUNCTION(Runtime_ArgumentsLength) {
+  SealHandleScope shs(isolate);
+  DCHECK(args.length() == 0);
+  JavaScriptFrameIterator it(isolate);
+  JavaScriptFrame* frame = it.frame();
+  return Smi::FromInt(frame->GetArgumentsLength());
+}
+
+
+RUNTIME_FUNCTION(Runtime_Arguments) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, raw_key, 0);
 
   // Compute the frame holding the arguments.
   JavaScriptFrameIterator it(isolate);
   it.AdvanceToArgumentsFrame();
   JavaScriptFrame* frame = it.frame();
 
   // Get the actual number of provided arguments.
@@ skipping 54 matching lines @@
     return function;
   }
 
   // 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;
 }
-
-
-RUNTIME_FUNCTION(Runtime_ArgumentsLength) {
-  SealHandleScope shs(isolate);
-  DCHECK(args.length() == 0);
-  JavaScriptFrameIterator it(isolate);
-  JavaScriptFrame* frame = it.frame();
-  return Smi::FromInt(frame->GetArgumentsLength());
-}
-
-
-RUNTIME_FUNCTION(Runtime_Arguments) {
-  SealHandleScope shs(isolate);
-  return __RT_impl_Runtime_GetArgumentsProperty(args, isolate);
-}
 }  // namespace internal
 }  // namespace v8