Support fast noSuchMethod dispatch for any number of arguments.

runtime/vm/class_finalizer.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/class_finalizer.h"
 
 #include "vm/flags.h"
 #include "vm/heap.h"
 #include "vm/isolate.h"
 #include "vm/longjump.h"
@@ skipping 939 matching lines @@
 // Check if an instance method of same name exists in any super class.
 static RawClass* FindSuperOwnerOfFunction(const Class& cls,
                                           const String& name) {
   Class& super_class = Class::Handle();
   Function& function = Function::Handle();
   super_class = cls.SuperClass();
   while (!super_class.IsNull()) {
     function = super_class.LookupFunction(name);
     if (!function.IsNull() &&
         !function.is_static() &&
-        !function.IsMethodExtractor() &&
-        !function.IsNoSuchMethodDispatcher()) {
+        !function.IsMethodExtractor()) {
       return super_class.raw();
     }
     super_class = super_class.SuperClass();
   }
   return Class::null();
 }
 
 
 // Resolve the upper bounds of the type parameters of class cls.
 void ClassFinalizer::ResolveUpperBounds(const Class& cls) {
@@ skipping 1073 matching lines @@
   expected_name ^= String::New("_offset");
   ASSERT(String::EqualsIgnoringPrivateKey(name, expected_name));
   field ^= fields_array.At(2);
   ASSERT(field.Offset() == TypedDataView::length_offset());
   name ^= field.name();
   ASSERT(name.Equals("length"));
 #endif
 }
 
 }  // namespace dart