Remove HRuntimeType scheme for function types.

pkg/compiler/lib/src/js_backend/backend_helpers.dart

 // Copyright (c) 2015, 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.js_backend.helpers;
 
 import '../common.dart';
 import '../common/names.dart' show Identifiers, Uris;
 import '../compiler.dart' show Compiler;
 import '../core_types.dart' show CommonElements, ElementEnvironment;
@@ skipping 594 matching lines @@
       _findHelperFunction('runtimeTypeToString');
 
   FunctionEntity get assertIsSubtype => _findHelperFunction('assertIsSubtype');
 
   FunctionEntity get checkSubtype => _findHelperFunction('checkSubtype');
 
   FunctionEntity get assertSubtype => _findHelperFunction('assertSubtype');
 
   FunctionEntity get subtypeCast => _findHelperFunction('subtypeCast');
 
+  FunctionEntity get functionTypeTest =>
+      _findHelperFunction('functionTypeTest');
+
   FunctionEntity get checkSubtypeOfRuntimeType =>
       _findHelperFunction('checkSubtypeOfRuntimeType');
 
   FunctionEntity get assertSubtypeOfRuntimeType =>
       _findHelperFunction('assertSubtypeOfRuntimeType');
 
   FunctionEntity get subtypeOfRuntimeTypeCast =>
       _findHelperFunction('subtypeOfRuntimeTypeCast');
 
   FunctionEntity get checkDeferredIsLoaded =>
@@ skipping 175 matching lines @@
   /// The class for patch annotations defined in dart:_js_helper.
   ClassEntity get patchAnnotationClass =>
       _patchAnnotationClass ??= _findHelperClass('_Patch');
 
   ClassEntity _nativeAnnotationClass;
 
   /// The class for native annotations defined in dart:_js_helper.
   ClassEntity get nativeAnnotationClass =>
       _nativeAnnotationClass ??= _findHelperClass('Native');
 }