pkg/csslib: types, fixes, cleanup

pkg/csslib/test/declaration_test.dart

 // Copyright (c) 2012, 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 declaration_test;
 
 import 'package:unittest/unittest.dart';
 import 'testing.dart';
-import 'package:csslib/parser.dart';
-import 'package:csslib/visitor.dart';
 
 
 /** CSS compiler options no checks in in memory style sheet. */
 List options = ['--no-colors', 'memory'];
 
 void testSimpleTerms() {
   var errors = [];
   final String input = r'''
 @ import url("test.css");
 .foo {
@@ skipping 1006 matching lines @@
   test('Newer CSS', testNewerCss);
   test('Media Queries', testMediaQueries);
   test('Font-Face', testFontFace);
   test('CSS file', testCssFile);
   test('Compact Emitter', testCompactEmitter);
   test('Selector Negation', testNotSelectors);
   test('IE stuff', testIE);
   test('IE declaration syntax', testIEDeclaration);
   test('Hanging bugs', testHangs);
 }