More fixes for failures on the Windows bot

pkg/analysis_server/test/integration/completion/test_all.dart

Index: pkg/analysis_server/test/integration/completion/test_all.dart
diff --git a/pkg/analysis_server/test/integration/completion/test_all.dart b/pkg/analysis_server/test/integration/completion/test_all.dart
index dc3e046e454e17060a8bf44b3643d3d31bf1f268..aae07f3ecd621c993bf21affa45f131d1e81bca9 100644
--- a/pkg/analysis_server/test/integration/completion/test_all.dart
+++ b/pkg/analysis_server/test/integration/completion/test_all.dart
@@ -6,13 +6,14 @@ library test.integration.completion.all;
 
 import 'package:unittest/unittest.dart';
 
+import '../../utils.dart';
 import 'get_suggestions_test.dart' as get_suggestions_test;
 
 /**
  * Utility for manually running all integration tests.
  */
 main() {
-  groupSep = ' | ';
+  initializeTestEnvironment();
   group('completion', () {
     get_suggestions_test.main();
   });