Don't use LinkedEditGroup.id.

pkg/analysis_server/test/services/correction/change_test.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 test.services.correction.change;
 
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol2.dart' show SourceEdit;
 import 'package:analysis_server/src/services/correction/change.dart';
 import 'package:analysis_testing/reflective_tests.dart';
@@ skipping 44 matching lines @@
 
   void test_toJson() {
     Change change = new Change('msg');
     change.addFileEdit(new FileEdit('/a.dart')
         ..add(new SourceEdit(1, 2, 'aaa'))
         ..add(new SourceEdit(10, 20, 'bbb')));
     change.addFileEdit(new FileEdit('/b.dart')
         ..add(new SourceEdit(21, 22, 'xxx'))
         ..add(new SourceEdit(210, 220, 'yyy')));
     {
-      var group = new LinkedEditGroup('id-a');
+      var group = new LinkedEditGroup();
       change.addLinkedEditGroup(group
           ..addPosition(new Position('/ga.dart', 1), 2)
           ..addPosition(new Position('/ga.dart', 10), 2));
       group.addSuggestion(
           new LinkedEditSuggestion(LinkedEditSuggestionKind.TYPE, 'AA'));
       group.addSuggestion(
           new LinkedEditSuggestion(LinkedEditSuggestionKind.TYPE, 'BB'));
     }
-    change.addLinkedEditGroup(new LinkedEditGroup('id-b')
+    change.addLinkedEditGroup(new LinkedEditGroup()
         ..addPosition(new Position('/gb.dart', 10), 5)
         ..addPosition(new Position('/gb.dart', 100), 5));
     change.selection = new Position('/selection.dart', 42);
     var expectedJson = {
       'message': 'msg',
       'edits': [{
           'file': '/a.dart',
           'edits': [{
               'offset': 10,
               'length': 20,
               'replacement': 'bbb'
             }, {
               'offset': 1,
               'length': 2,
               'replacement': 'aaa'
             }]
         }, {
           'file': '/b.dart',
           'edits': [{
               'offset': 210,
               'length': 220,
               'replacement': 'yyy'
             }, {
               'offset': 21,
               'length': 22,
               'replacement': 'xxx'
             }]
         }],
       'linkedEditGroups': [{
-          'id': 'id-a',
           'length': 2,
           'positions': [{
               'file': '/ga.dart',
               'offset': 1
             }, {
               'file': '/ga.dart',
               'offset': 10
             }],
           'suggestions': [{
               'kind': 'TYPE',
               'value': 'AA'
             }, {
               'kind': 'TYPE',
               'value': 'BB'
             }]
         }, {
-          'id': 'id-b',
           'length': 5,
           'positions': [{
               'file': '/gb.dart',
               'offset': 10
             }, {
               'file': '/gb.dart',
               'offset': 100
             }],
           'suggestions': []
         }],
@@ skipping 111 matching lines @@
         },]
     };
     expect(fileEdit.toJson(), expectedJson);
   }
 }
 
 
 @ReflectiveTestCase()
 class LinkedEditGroupTest {
   void test_new() {
-    LinkedEditGroup group = new LinkedEditGroup('my-id');
+    LinkedEditGroup group = new LinkedEditGroup();
     group.addPosition(new Position('/a.dart', 1), 2);
     group.addPosition(new Position('/b.dart', 10), 2);
     expect(
         group.toString(),
-        'LinkedEditGroup(id=my-id, length=2, positions=['
+        'LinkedEditGroup(length=2, positions=['
             'Position(file=/a.dart, offset=1), '
             'Position(file=/b.dart, offset=10)], suggestions=[])');
   }
 
   void test_toJson() {
-    LinkedEditGroup group = new LinkedEditGroup('my-id');
+    LinkedEditGroup group = new LinkedEditGroup();
     group.addPosition(new Position('/a.dart', 1), 2);
     group.addPosition(new Position('/b.dart', 10), 2);
     group.addSuggestion(
         new LinkedEditSuggestion(LinkedEditSuggestionKind.TYPE, 'AA'));
     group.addSuggestion(
         new LinkedEditSuggestion(LinkedEditSuggestionKind.TYPE, 'BB'));
     expect(group.toJson(), {
-      'id': 'my-id',
       'length': 2,
       'positions': [{
           'file': '/a.dart',
           'offset': 1
         }, {
           'file': '/b.dart',
           'offset': 10
         }],
       'suggestions': [{
           'kind': 'TYPE',
@@ skipping 49 matching lines @@
 
   void test_toJson() {
     Position position = new Position('/test.dart', 1);
     var expectedJson = {
       FILE: '/test.dart',
       OFFSET: 1
     };
     expect(position.toJson(), expectedJson);
   }
 }