Don't bailout of type inference for simple NSM implementations

pkg/compiler/lib/src/compiler.dart

 // 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.
 
 part of dart2js;
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
@@ skipping 385 matching lines @@
   ClassElement get functionImplementation => compiler.functionClass;
   ClassElement get typeImplementation => compiler.typeClass;
   ClassElement get boolImplementation => compiler.boolClass;
   ClassElement get nullImplementation => compiler.nullClass;
   ClassElement get uint32Implementation => compiler.intClass;
   ClassElement get uint31Implementation => compiler.intClass;
   ClassElement get positiveIntImplementation => compiler.intClass;
 
   ClassElement defaultSuperclass(ClassElement element) => compiler.objectClass;
 
-  bool isDefaultNoSuchMethodImplementation(Element element) {
-    assert(element.name == Compiler.NO_SUCH_METHOD);
-    ClassElement classElement = element.enclosingClass;
-    return classElement == compiler.objectClass;
-  }
-
   bool isInterceptorClass(ClassElement element) => false;
 
   /// Returns `true` if [element] is a foreign element, that is, that the
   /// backend has specialized handling for the element.
   bool isForeign(Element element) => false;
 
   /// Processes [element] for resolution and returns the [FunctionElement] that
   /// defines the implementation of [element].
   FunctionElement resolveExternalFunction(FunctionElement element) => element;
 
@@ skipping 1995 matching lines @@
     return futureClass.computeType(compiler).createInstantiation([elementType]);
   }
 
   @override
   InterfaceType streamType([DartType elementType = const DynamicType()]) {
     return streamClass.computeType(compiler).createInstantiation([elementType]);
   }
 }
 
 typedef void InternalErrorFunction(Spannable location, String message);