Enforce use of the forEachInstanceField ordering for constructed constants.

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

 // Copyright (c) 2012, 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.constant_system.js;
 
 import '../compiler.dart' show Compiler;
 import '../constants/constant_system.dart';
 import '../constants/values.dart';
 import '../constant_system_dart.dart';
@@ skipping 339 matching lines @@
   ConstantValue createSymbol(Compiler compiler, String text) {
     // TODO(johnniwinther): Create a backend agnostic value.
     JavaScriptBackend backend = compiler.backend;
     ClassElement symbolClass = backend.helpers.symbolImplementationClass;
     InterfaceType type = symbolClass.rawType;
     ConstantValue argument = createString(new DartString.literal(text));
     Map<FieldElement, ConstantValue> fields = <FieldElement, ConstantValue>{};
     symbolClass.forEachInstanceField(
         (ClassElement enclosingClass, FieldElement field) {
       fields[field] = argument;
-    });
+    }, includeSuperAndInjectedMembers: true);
     assert(fields.length == 1);
     return new ConstructedConstantValue(type, fields);
   }
 }
 
 class JavaScriptMapConstant extends MapConstantValue {
   /**
    * The [PROTO_PROPERTY] must not be used as normal property in any JavaScript
    * object. It would change the prototype chain.
    */
@@ skipping 27 matching lines @@
       result.add(keyList);
     } else {
       // Add the keys individually to avoid generating an unused list constant
       // for the keys.
       result.addAll(keys);
     }
     result.addAll(values);
     return result;
   }
 }