Fix normalization of relative paths inside of deep relative imports

test/build/import_crawler_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 web_components.test.build.import_crawler_test;
 
 import 'dart:async';
 import 'package:barback/barback.dart';
 import 'package:code_transformers/tests.dart';
 import 'package:code_transformers/messages/build_logger.dart';
 import 'package:html5lib/dom.dart' show Document;
@@ skipping 16 matching lines @@
     if (_preParseDocument) {
       return primaryInput.readAsString().then((html) {
         var document = parseHtml(html, primaryInput.id.path);
         return crawlDocument(transform, logger, document);
       });
     } else {
       return crawlDocument(transform, logger);
     }
   }
 
-  Future crawlDocument(
-      Transform transform, BuildLogger logger, [Document document]) {
+  Future crawlDocument(Transform transform, BuildLogger logger,
+      [Document document]) {
     var primaryInput = transform.primaryInput;
-    var crawler = new ImportCrawler(
-        transform, primaryInput.id, logger, primaryDocument: document);
+    var crawler = new ImportCrawler(transform, primaryInput.id, logger,
+        primaryDocument: document);
     return crawler.crawlImports().then((docs) {
       documents = docs;
       transform.addOutput(new Asset.fromString(
           new AssetId('a', 'web/result.txt'), '${documents.keys}'));
     });
   }
 }
 
 main() {
   useCompactVMConfiguration();
@@ skipping 56 matching lines @@
       <link rel="import" href="three/zap.html">
       <div>a|lib/one/two/baz.html</div>''',
     'a|lib/one/two/three/zap.html': '''
       <div>a|lib/one/two/three/zap.html</div>''',
   }, {
     'a|web/result.txt':
         '(a|lib/one/two/three/zap.html, a|lib/one/two/baz.html, '
         'a|lib/one/bar.html, a|lib/foo.html, a|web/index.html)',
   }, [], StringFormatter.noNewlinesOrSurroundingWhitespace);
 }