dart2js cps: Extend type masks to handle reflective invocations.

pkg/compiler/lib/src/js_backend/codegen/glue.dart

 // Copyright (c) 2014, 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 code_generator_dependencies;
 
 import '../backend_helpers.dart' show
     BackendHelpers;
 import '../js_backend.dart';
 
@@ skipping 12 matching lines @@
 import '../../enqueue.dart' show
     CodegenEnqueuer;
 import '../../elements/elements.dart';
 import '../../js_emitter/js_emitter.dart';
 import '../../js/js.dart' as js;
 import '../../native/native.dart' show NativeBehavior;
 import '../../universe/selector.dart' show
     Selector;
 import '../../world.dart' show
     ClassWorld;
-
+import '../../types/types.dart';
 
 /// Encapsulates the dependencies of the function-compiler to the compiler,
 /// backend and emitter.
 // TODO(sigurdm): Should be refactored when we have a better feeling for the
 // interface.
 class Glue {
   final Compiler _compiler;
 
   CodegenEnqueuer get _enqueuer => _compiler.enqueuer.codegen;
 
@@ skipping 236 matching lines @@
   // TODO(sra,johnniwinther): Should this be part of CodegenRegistry?
   void registerNativeBehavior(NativeBehavior nativeBehavior, node) {
     if (nativeBehavior == null) return;
     _enqueuer.nativeEnqueuer.registerNativeBehavior(nativeBehavior, node);
   }
 
   ConstantValue getDefaultParameterValue(ParameterElement elem) {
     return _backend.constants.getConstantValueForVariable(elem);
   }
 
+  TypeMask extendMaskIfReachesAll(Selector selector, TypeMask mask) {
+    return _compiler.world.extendMaskIfReachesAll(selector, mask);
+  }
+
   FunctionElement get closureFromTearOff => _backend.helpers.closureFromTearOff;
 }