update tests for execution on windows

pkg/analyzer/test/source/error_processor_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 analyzer.test.source.error_processor;
 
 import 'package:analyzer/source/analysis_options_provider.dart';
 import 'package:analyzer/source/error_processor.dart';
 import 'package:analyzer/src/context/context.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/error.dart';
 import 'package:analyzer/src/task/options.dart';
 import 'package:plugin/manager.dart';
 import 'package:plugin/plugin.dart';
 import 'package:unittest/unittest.dart';
 import 'package:yaml/src/yaml_node.dart';
 
 import '../generated/test_support.dart';
-import '../utils.dart';
 
 main() {
   AnalysisError invalid_assignment =
       new AnalysisError(new TestSource(), 0, 1, HintCode.INVALID_ASSIGNMENT, [
     ['x'],
     ['y']
   ]);
 
   AnalysisError missing_return =
       new AnalysisError(new TestSource(), 0, 1, HintCode.MISSING_RETURN, [
     ['x']
   ]);
 
   AnalysisError unused_local_variable = new AnalysisError(
       new TestSource(), 0, 1, HintCode.UNUSED_LOCAL_VARIABLE, [
     ['x']
   ]);
 
   AnalysisError use_of_void_result =
       new AnalysisError(new TestSource(), 0, 1, HintCode.USE_OF_VOID_RESULT, [
     ['x']
   ]);
 
-  initializeTestEnvironment();
   oneTimeSetup();
 
   setUp(() {
     context = new TestContext();
   });
 
   group('ErrorProcessorTest', () {
     test('configureOptions', () {
       configureOptions('''
 analyzer:
@@ skipping 87 matching lines @@
 void oneTimeSetup() {
   List<Plugin> plugins = <Plugin>[];
   plugins.addAll(AnalysisEngine.instance.requiredPlugins);
   plugins.add(AnalysisEngine.instance.commandLinePlugin);
   plugins.add(AnalysisEngine.instance.optionsPlugin);
   ExtensionManager manager = new ExtensionManager();
   manager.processPlugins(plugins);
 }
 
 class TestContext extends AnalysisContextImpl {}