Use Entity instead of Element in ConstantValue

pkg/compiler/lib/src/js_emitter/full_emitter/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.full_emitter;
 
 import 'dart:collection' show HashMap;
 import 'dart:convert';
 
 import 'package:js_runtime/shared/embedded_names.dart' as embeddedNames;
@@ skipping 308 matching lines @@
     return pa;
   }
 
   @override
   jsAst.Expression isolateLazyInitializerAccess(FieldElement element) {
     return jsAst.js('#.#',
         [namer.globalObjectFor(element), namer.lazyInitializerName(element)]);
   }
 
   @override
-  jsAst.Expression isolateStaticClosureAccess(FunctionElement element) {
+  jsAst.Expression isolateStaticClosureAccess(MethodElement element) {
     return jsAst.js('#.#()',
         [namer.globalObjectFor(element), namer.staticClosureName(element)]);
   }
 
   @override
   jsAst.PropertyAccess staticFieldAccess(FieldElement element) {
     return globalPropertyAccess(element);
   }
 
   @override
@@ skipping 1839 matching lines @@
     if (cachedElements.isEmpty) return;
     for (Element element in backend.codegenEnqueuer.newlyEnqueuedElements) {
       if (element.isInstanceMember) {
         cachedClassBuilders.remove(element.enclosingClass);
 
         nativeEmitter.cachedBuilders.remove(element.enclosingClass);
       }
     }
   }
 }