More fixes for failures on the Windows bot

pkg/analyzer/test/test_all.dart

Index: pkg/analyzer/test/test_all.dart
diff --git a/pkg/analyzer/test/test_all.dart b/pkg/analyzer/test/test_all.dart
index cde1f38234c262211bb18159cf840f0092e4c2e9..c21cc3f8df118e3d2425bd407638be865988905f 100644
--- a/pkg/analyzer/test/test_all.dart
+++ b/pkg/analyzer/test/test_all.dart
@@ -14,10 +14,11 @@ import 'instrumentation/test_all.dart' as instrumentation;
 import 'parse_compilation_unit_test.dart' as parse_compilation_unit;
 import 'source/test_all.dart' as source;
 import 'src/test_all.dart' as src;
+import 'utils.dart';
 
 /// Utility for manually running all tests.
 main() {
-  groupSep = ' | ';
+  initializeTestEnvironment();
   group('analysis engine', () {
     cancelable_future_test.main();
     enum_test.main();