Use Entity instead of Element in ConstantValue

pkg/compiler/lib/src/js_emitter/lazy_emitter/model_emitter.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 dart2js.js_emitter.lazy_emitter.model_emitter;
 
 import 'package:js_runtime/shared/embedded_names.dart'
     show
         CREATE_NEW_ISOLATE,
         DEFERRED_LIBRARY_URIS,
         DEFERRED_LIBRARY_HASHES,
         GET_TYPE_FROM_NAME,
         INITIALIZE_LOADED_HUNK,
         INTERCEPTORS_BY_TAG,
         IS_HUNK_INITIALIZED,
         IS_HUNK_LOADED,
         LEAF_TAGS,
         MANGLED_GLOBAL_NAMES,
         METADATA,
         TYPE_TO_INTERCEPTOR_MAP,
         TYPES;
 
 import '../../compiler.dart' show Compiler;
 import '../../constants/values.dart' show ConstantValue, FunctionConstantValue;
 import '../../core_types.dart' show CommonElements;
-import '../../elements/elements.dart' show ClassElement, FunctionElement;
+import '../../elements/elements.dart' show ClassElement, MethodElement;
 import '../../js/js.dart' as js;
 import '../../js_backend/js_backend.dart'
     show JavaScriptBackend, Namer, ConstantEmitter;
 import '../constant_ordering.dart' show deepCompareConstants;
 import '../js_emitter.dart' show NativeEmitter;
 import '../js_emitter.dart' show NativeGenerator, buildTearOffCode;
 import '../model.dart';
 
 class ModelEmitter {
   final Compiler compiler;
@@ skipping 59 matching lines @@
 
     // Sorting by the long name clusters constants with the same constructor
     // which compresses a tiny bit better.
     int r = namer.constantLongName(a).compareTo(namer.constantLongName(b));
     if (r != 0) return r;
 
     // Resolve collisions in the long name by using a structural order.
     return deepCompareConstants(a, b);
   }
 
-  js.Expression generateStaticClosureAccess(FunctionElement element) {
+  js.Expression generateStaticClosureAccess(MethodElement element) {
     return js.js('#.#()',
         [namer.globalObjectFor(element), namer.staticClosureName(element)]);
   }
 
   js.Expression generateConstantReference(ConstantValue value) {
     if (value.isFunction) {
       FunctionConstantValue functionConstant = value;
       return generateStaticClosureAccess(functionConstant.element);
     }
 
@@ skipping 1150 matching lines @@
   #eagerClasses;
 
   var end = Date.now();
   // print('Setup: ' + (end - start) + ' ms.');
 
   #invokeMain;  // Start main.
 
 })(Date.now(), #code)
 }""";
 }