Update elements, nodes and visitors for serialization.

pkg/compiler/lib/src/resolution/enum_creator.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.resolution.enum_creator;
 
 import '../common.dart';
 import '../core_types.dart' show CoreTypes;
 import '../dart_types.dart';
 import '../elements/elements.dart';
@@ skipping 205 matching lines @@
         indexDefinition, builder.identifier('index'), indexVariable);
 
     FunctionSignatureX constructorSignature = new FunctionSignatureX(
         requiredParameters: [indexFormal],
         requiredParameterCount: 1,
         type: new FunctionType(
             constructor, const VoidType(), <DartType>[intType]));
     constructor.functionSignature = constructorSignature;
     enumClass.addMember(constructor, reporter);
 
-    List<FieldElement> enumValues = <FieldElement>[];
+    List<EnumConstantElement> enumValues = <EnumConstantElement>[];
     VariableList variableList =
         new VariableList(builder.modifiers(isStatic: true, isConst: true));
     variableList.type = enumType;
     int index = 0;
     List<Node> valueReferences = <Node>[];
     List<LiteralMapEntry> mapEntries = <LiteralMapEntry>[];
     for (Link<Node> link = node.names.nodes; !link.isEmpty; link = link.tail) {
       Identifier name = link.head;
       AstBuilder valueBuilder = new AstBuilder(name.token.charOffset);
 
       // Add reference for the `values` field.
       valueReferences.add(valueBuilder.reference(name));
 
       // Add map entry for `toString` implementation.
       mapEntries.add(valueBuilder.mapLiteralEntry(
           valueBuilder.literalInt(index),
           valueBuilder.literalString('${enumClass.name}.${name.source}')));
 
       Expression initializer = valueBuilder.newExpression(enumClass.name,
           valueBuilder.argumentList([valueBuilder.literalInt(index)]),
           isConst: true);
       SendSet definition = valueBuilder.createDefinition(name, initializer);
 
-      EnumFieldElementX field = new EnumFieldElementX(
-          name, enumClass, variableList, definition, initializer);
+      EnumConstantElementX field = new EnumConstantElementX(
+          name, enumClass, variableList, definition, initializer, index);
       enumValues.add(field);
       enumClass.addMember(field, reporter);
       index++;
     }
 
     VariableList valuesVariableList =
         new VariableList(builder.modifiers(isStatic: true, isConst: true));
     valuesVariableList.type = coreTypes.listType(enumType);
 
     Identifier valuesIdentifier = builder.identifier('values');
@@ skipping 21 matching lines @@
     EnumMethodElementX toString = new EnumMethodElementX(
         'toString', enumClass, Modifiers.EMPTY, toStringNode);
     FunctionSignatureX toStringSignature =
         new FunctionSignatureX(type: new FunctionType(toString, stringType));
     toString.functionSignature = toStringSignature;
     enumClass.addMember(toString, reporter);
 
     enumClass.enumValues = enumValues;
   }
 }