pkg/csslib: fixes for args

test/visitor_test.dart

 // Copyright (c) 2013, 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 visitor_test;
 
 import 'package:unittest/unittest.dart';
 import 'package:csslib/visitor.dart';
 import 'testing.dart';
 
@@ skipping 31 matching lines @@
 
   var clsVisits = new ClassVisitor(['foobar'])..visitTree(s);
   expect(clsVisits.matches, true);
 
   in1 = '''
       .foobar1 { }
       .xyzzy .foo #my-div { color: red; }
       div.hello { font: arial; }
     ''';
 
-  s = parseCss(in1, errors: errors..clear(), opts: ['--no-colors', 'memory']);
+  s = parseCss(in1, errors: errors..clear(), opts: simpleOptions);
 
   expect(s != null, true);
   expect(errors.isEmpty, true, reason: errors.toString());
 
   clsVisits = new ClassVisitor(['foobar1', 'xyzzy', 'foo', 'hello'])
     ..visitTree(s);
   expect(clsVisits.matches, true);
 
   expect(prettyPrint(s), r'''
 .foobar1 {
@@ skipping 40 matching lines @@
   expect(errors.isEmpty, true, reason: errors.toString());
 
   final emitted = polyfillPrint('myComponent', s);
   expect(emitted, generated);
 }
 
 main() {
   test('Class Visitors', testClassVisitors);
   test('Polyfill', testPolyFill);
 }