More fixes for failures on the Windows bot

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

Index: pkg/analysis_server/test/src/utilities/test_all.dart
diff --git a/pkg/analysis_server/test/src/utilities/test_all.dart b/pkg/analysis_server/test/src/utilities/test_all.dart
index e2ce06eea5e622d4ec188f345f73ea81594ba6a2..cdb4f8351c740b2511d2d8d37a96f9a548375a5f 100644
--- a/pkg/analysis_server/test/src/utilities/test_all.dart
+++ b/pkg/analysis_server/test/src/utilities/test_all.dart
@@ -4,14 +4,13 @@
 
 library test.services;
 
-import 'package:unittest/unittest.dart';
-
+import '../../utils.dart';
 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 = ' | ';
+  initializeTestEnvironment();
   change_builder_core_test.main();
   change_builder_dart_test.main();
 }