Add utilities for creating SourceChanges

pkg/analysis_server/test/src/utilities/test_all.dart

Index: pkg/analysis_server/test/src/utilities/test_all.dart
diff --git a/pkg/analyzer/test/task/test_all.dart b/pkg/analysis_server/test/src/utilities/test_all.dart
similarity index 59%
copy from pkg/analyzer/test/task/test_all.dart
copy to pkg/analysis_server/test/src/utilities/test_all.dart
index 9ecd16215ffb783037abdb763a392bfa04311251..e2ce06eea5e622d4ec188f345f73ea81594ba6a2 100644
--- a/pkg/analyzer/test/task/test_all.dart
+++ b/pkg/analysis_server/test/src/utilities/test_all.dart
@@ -2,16 +2,16 @@
 // 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.task;
+library test.services;
 
 import 'package:unittest/unittest.dart';
 
-import 'task_dart_test.dart' as task_dart_test;
+import 'change_builder_core_test.dart' as change_builder_core_test;
+import 'change_builder_dart_test.dart' as change_builder_dart_test;
 
 /// Utility for manually running all tests.
 main() {
   groupSep = ' | ';
-  group('generated tests', () {
-    task_dart_test.main();
-  });
+  change_builder_core_test.main();
+  change_builder_dart_test.main();
 }