Update ConstTopLevelVariableElementImpl constructors.

pkg/analyzer/lib/src/dart/element/element.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 analyzer.src.dart.element.element;
 
 import 'dart:collection';
 import 'dart:math' show min;
 
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 1382 matching lines @@
  * initializer.
  */
 class ConstTopLevelVariableElementImpl extends TopLevelVariableElementImpl
     with ConstVariableElement {
   /**
    * The result of evaluating this variable's initializer.
    */
   EvaluationResultImpl _result;
 
   /**
+   * Initialize a newly created synthetic top-level variable element to have the
+   * given [name] and [offset].
+   */
+  ConstTopLevelVariableElementImpl(String name, int offset)
+      : super(name, offset);
+
+  /**
    * Initialize a newly created top-level variable element to have the given
    * [name].
    */
-  ConstTopLevelVariableElementImpl(Identifier name) : super.forNode(name);
+  ConstTopLevelVariableElementImpl.forNode(Identifier name)
+      : super.forNode(name);
 
   @override
   DartObject get constantValue => _result.value;
 
   @override
   EvaluationResultImpl get evaluationResult => _result;
 
   @override
   void set evaluationResult(EvaluationResultImpl result) {
     this._result = result;
@@ skipping 3331 matching lines @@
 
   @override
   void visitElement(Element element) {
     int offset = element.nameOffset;
     if (offset != -1) {
       map[offset] = element;
     }
     super.visitElement(element);
   }
 }