Fix type masks for js-interop types.

pkg/compiler/lib/src/common/resolution.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.
 
 library dart2js.common.resolution;
 
 import '../common.dart';
 import '../compile_time_constants.dart';
 import '../compiler.dart' show Compiler;
 import '../constants/expressions.dart' show ConstantExpression;
@@ skipping 80 matching lines @@
   MethodElement resolveExternalFunction(MethodElement element) => element;
 
   /// Called when resolving a call to a foreign function. If a non-null value
   /// is returned, this is stored as native data for [node] in the resolved
   /// AST.
   dynamic resolveForeignCall(Send node, Element element,
       CallStructure callStructure, ForeignResolver resolver) {
     return null;
   }
 
+  /// Returns `true` if [element] is a default implementation of `noSuchMethod`
+  /// used by the target.
+  bool isDefaultNoSuchMethod(MethodElement element);
+
   /// Returns the default superclass for the given [element] in this target.
   ClassElement defaultSuperclass(ClassElement element);
 
   /// Returns `true` if [element] is a native element, that is, that the
   /// corresponding entity already exists in the target language.
   bool isNative(Element 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;
@@ skipping 135 matching lines @@
       if (cls.isPatch) {
         patchParser.parsePatchClassNode(cls);
       }
     });
   }
 
   @override
   ScannerOptions getScannerOptionsFor(Element element) => new ScannerOptions(
       canUseNative: backend.canLibraryUseNative(element.library));
 }