Introduce TypedefEntity

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

 // Copyright (c) 2011, 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 js_backend.namer;
 
 import 'dart:collection' show HashMap;
 
 import 'package:js_runtime/shared/embedded_names.dart' show JsGetName;
 
 import '../closure.dart';
 import '../common.dart';
 import '../common/names.dart' show Identifiers, Selectors;
 import '../constants/values.dart';
 import '../common_elements.dart' show CommonElements;
 import '../diagnostics/invariant.dart' show DEBUG_MODE;
 import '../elements/elements.dart'
     show
         ClassElement,
         Element,
         Elements,
         FieldElement,
         MemberElement,
-        MixinApplicationElement,
-        TypedefElement;
+        MixinApplicationElement;
 import '../elements/entities.dart';
 import '../elements/entity_utils.dart' as utils;
 import '../elements/jumps.dart';
 import '../elements/names.dart';
 import '../elements/resolution_types.dart';
 import '../elements/types.dart';
 import '../js/js.dart' as jsAst;
 import '../universe/call_structure.dart' show CallStructure;
 import '../universe/selector.dart' show Selector, SelectorKind;
 import '../universe/world_builder.dart' show CodegenWorldBuilder;
@@ skipping 1489 matching lines @@
   String globalObjectForMember(MemberEntity element) {
     if (_isPropertyOfStaticStateHolder(element)) return staticStateHolder;
     return globalObjectForLibrary(element.library);
   }
 
   String globalObjectForClass(ClassEntity element) {
     return globalObjectForLibrary(element.library);
   }
 
   String globalObjectForType(Entity element) {
-    if (element is TypedefElement) {
+    if (element is TypedefEntity) {
       return globalObjectForLibrary(element.library);
     }
     return globalObjectForClass(element);
   }
 
   /// Returns the [reservedGlobalObjectNames] for [library].
   String globalObjectForLibrary(LibraryEntity library) {
     if (library == _commonElements.interceptorsLibrary) return 'J';
     Uri uri = library.canonicalUri;
     if (uri.scheme == 'dart') {
@@ skipping 693 matching lines @@
   void addSuggestion(String original, String suggestion) {
     assert(!_suggestedNames.containsKey(original));
     _suggestedNames[original] = suggestion;
   }
 
   bool hasSuggestion(String original) => _suggestedNames.containsKey(original);
   bool isSuggestion(String candidate) {
     return _suggestedNames.containsValue(candidate);
   }
 }