More fixes for failures on the Windows bot

pkg/analysis_server/test/analysis/notification_occurrences_test.dart

 // Copyright (c) 2014, 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.analysis.notification.occurrences;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
 import '../analysis_abstract.dart';
+import '../utils.dart';
 
 main() {
-  groupSep = ' | ';
+  initializeTestEnvironment();
   defineReflectiveTests(AnalysisNotificationOccurrencesTest);
 }
 
 @reflectiveTest
 class AnalysisNotificationOccurrencesTest extends AbstractAnalysisTest {
   List<Occurrences> occurrencesList;
   Occurrences testOccurences;
 
   /**
    * Asserts that there is an offset of [search] in [testOccurences].
@@ skipping 226 matching lines @@
     addTestFile('''
 void main() {
 }
 ''');
     return prepareOccurrences().then((_) {
       int offset = findOffset('void main()');
       findRegion(offset, 'void'.length, false);
     });
   }
 }