Create and cache method extraction stub in the ICData.

runtime/vm/class_finalizer.cc

 // Copyright (c) 2012, 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 897 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()) {
+    if (!function.IsNull() &&
+        !function.is_static() &&
+        !function.IsMethodExtractor()) {
       return super_class.raw();
     }
     super_class = super_class.SuperClass();
   }
   return Class::null();
 }
 
 
 // Resolve and finalize the upper bounds of the type parameters of class cls.
 void ClassFinalizer::ResolveAndFinalizeUpperBounds(const Class& cls) {
@@ skipping 648 matching lines @@
 void ClassFinalizer::ReportError(const char* format, ...) {
   va_list args;
   va_start(args, format);
   const Error& error = Error::Handle(
       Parser::FormatError(Script::Handle(), -1, "Error", format, args));
   va_end(args);
   ReportError(error);
 }
 
 }  // namespace dart