Don't use LinkedEditGroup.id.

pkg/analysis_server/lib/src/services/correction/change.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 services.correction.change;
 
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol2.dart';
 import 'package:analysis_server/src/services/json.dart';
 import 'package:analyzer/src/generated/source.dart';
@@ skipping 158 matching lines @@
   String toString() => "FileEdit(file=$file, edits=$edits)";
 }
 
 
 /**
  * A group of linked [Position]s in multiple files that are simultaneously
  * modified - if one gets edited, all other positions in a group are edited the
  * same way. All linked positions in a group have the same content.
  */
 class LinkedEditGroup implements HasToJson {
-  final String id;
   int length;
   final List<Position> positions = <Position>[];
   final List<LinkedEditSuggestion> suggestions = <LinkedEditSuggestion>[];
 
-  LinkedEditGroup(this.id);
-
   void addPosition(Position position, int length) {
     positions.add(position);
     this.length = length;
   }
 
   void addSuggestion(LinkedEditSuggestion suggestion) {
     suggestions.add(suggestion);
   }
 
   @override
   Map<String, Object> toJson() {
     return {
-      ID: id,
       LENGTH: length,
       POSITIONS: objectToJson(positions),
       SUGGESTIONS: objectToJson(suggestions)
     };
   }
 
   @override
   String toString() =>
-      'LinkedEditGroup(id=$id, length=$length, '
-          'positions=$positions, suggestions=$suggestions)';
+      'LinkedEditGroup(length=$length, positions=$positions, suggestions=$suggestions)';
 }
 
 
 /**
  * A suggestion of a value that could be used to replace all of the linked edit
  * regions in a [LinkedEditGroup].
  */
 class LinkedEditSuggestion implements HasToJson {
   final LinkedEditSuggestionKind kind;
   final String value;
@@ skipping 63 matching lines @@
   Map<String, Object> toJson() {
     return {
       FILE: file,
       OFFSET: offset
     };
   }
 
   @override
   String toString() => 'Position(file=$file, offset=$offset)';
 }