More fixes for failures on the Windows bot

pkg/analyzer/test/src/util/test_all.dart

Index: pkg/analyzer/test/src/util/test_all.dart
diff --git a/pkg/analyzer/test/src/util/test_all.dart b/pkg/analyzer/test/src/util/test_all.dart
index 4b607772e430ddb8153e0a8eab468f977ba75cda..f611c58d75f2fa8cadfa750fabd467253de32c9e 100644
--- a/pkg/analyzer/test/src/util/test_all.dart
+++ b/pkg/analyzer/test/src/util/test_all.dart
@@ -6,12 +6,13 @@ library test.src.util;
 
 import 'package:unittest/unittest.dart';
 
+import '../../utils.dart';
 import 'asserts_test.dart' as asserts_test;
 import 'lru_map_test.dart' as lru_map_test;
 
 /// Utility for manually running all tests.
 main() {
-  groupSep = ' | ';
+  initializeTestEnvironment();
   group('task tests', () {
     asserts_test.main();
     lru_map_test.main();