More fixes for failures on the Windows bot

pkg/analyzer/test/source/analysis_options_provider_test.dart

Index: pkg/analyzer/test/source/analysis_options_provider_test.dart
diff --git a/pkg/analyzer/test/source/analysis_options_provider_test.dart b/pkg/analyzer/test/source/analysis_options_provider_test.dart
index 9033c8c060ea0bef8c3b04a5a877dd0ed2fd6806..b20027846e6638a54917d1744cadd142b6711319 100644
--- a/pkg/analyzer/test/source/analysis_options_provider_test.dart
+++ b/pkg/analyzer/test/source/analysis_options_provider_test.dart
@@ -9,8 +9,10 @@ import 'package:analyzer/source/analysis_options_provider.dart';
 import 'package:unittest/unittest.dart';
 import 'package:yaml/yaml.dart';
 
+import '../utils.dart';
+
 main() {
-  groupSep = ' | ';
+  initializeTestEnvironment();
   group('AnalysisOptionsProvider', () {
     setUp(() {
       buildResourceProvider();
@@ -47,7 +49,9 @@ buildResourceProvider() {
   resourceProvider = new MemoryResourceProvider();
   resourceProvider.newFolder('/empty');
   resourceProvider.newFolder('/tmp');
-  resourceProvider.newFile('/.analysis_options', r'''
+  resourceProvider.newFile(
+      '/.analysis_options',
+      r'''
 analyzer:
   ignore:
     - ignoreme.dart