More fixes for failures on the Windows bot

pkg/analyzer/test/generated/java_core_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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.java_core_test;
 
 import 'package:analyzer/src/generated/java_core.dart';
 import 'package:unittest/unittest.dart';
 
+import '../utils.dart';
+
 main() {
+  initializeTestEnvironment();
   group('Character', () {
     group('isDigit', () {
       test('digits', () {
         expect(Character.isDigit('0'.codeUnitAt(0)), isTrue);
         expect(Character.isDigit('1'.codeUnitAt(0)), isTrue);
         expect(Character.isDigit('9'.codeUnitAt(0)), isTrue);
       });
 
       test('letters', () {
         expect(Character.isDigit('a'.codeUnitAt(0)), isFalse);
@@ skipping 122 matching lines @@
       expect(Character.isWhitespace('.'.codeUnitAt(0)), isFalse);
       expect(Character.isWhitespace('0'.codeUnitAt(0)), isFalse);
       expect(Character.isWhitespace('9'.codeUnitAt(0)), isFalse);
       expect(Character.isWhitespace('a'.codeUnitAt(0)), isFalse);
       expect(Character.isWhitespace('z'.codeUnitAt(0)), isFalse);
       expect(Character.isWhitespace('A'.codeUnitAt(0)), isFalse);
       expect(Character.isWhitespace('Z'.codeUnitAt(0)), isFalse);
     });
   });
 }