More fixes for failures on the Windows bot

pkg/analyzer/test/source/analysis_options_provider_test.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.source.analysis_options_provider;
 
 import 'package:analyzer/file_system/memory_file_system.dart';
 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();
     });
     tearDown(() {
       clearResourceProvider();
     });
     test('test_simple', () {
       var optionsProvider = new AnalysisOptionsProvider();
       Map<String, YamlNode> options =
@@ skipping 16 matching lines @@
     });
   });
 }
 
 MemoryResourceProvider resourceProvider;
 
 buildResourceProvider() {
   resourceProvider = new MemoryResourceProvider();
   resourceProvider.newFolder('/empty');
   resourceProvider.newFolder('/tmp');
-  resourceProvider.newFile('/.analysis_options', r'''
+  resourceProvider.newFile(
+      '/.analysis_options',
+      r'''
 analyzer:
   ignore:
     - ignoreme.dart
     - 'sdk_ext/**'
 ''');
 }
 
 clearResourceProvider() {
   resourceProvider = null;
 }
 
 emptyResourceProvider() {
   resourceProvider = new MemoryResourceProvider();
 }