Breaking changes in 'analyzer' package.

pkg/analyzer/test/file_system/physical_resource_provider_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.
 
 library test.physical_file_system;
 
 import 'dart:async';
 import 'dart:io' as io;
 
 import 'package:analyzer/file_system/file_system.dart';
@@ skipping 116 matching lines @@
         String path;
         File file;
 
         setUp(() {
           path = join(tempPath, 'file.txt');
           file = PhysicalResourceProvider.INSTANCE.getResource(path);
         });
 
         test('createSource', () {
           new io.File(path).writeAsStringSync('contents');
-          var source = file.createSource(UriKind.FILE_URI);
+          Source source = file.createSource();
           expect(source.uriKind, UriKind.FILE_URI);
           expect(source.exists(), isTrue);
           expect(source.contents.data, 'contents');
         });
 
         group('exists', () {
           test('false', () {
             expect(file.exists, isFalse);
           });
 
@@ skipping 138 matching lines @@
           expect(folder.canonicalizePath('baz'), equals(join(path, 'baz')));
           expect(folder.canonicalizePath(path2), equals(path2));
           expect(folder.canonicalizePath(join('..', 'folder2')), equals(path2));
           expect(folder.canonicalizePath(join(path2, '..', 'folder3')), equals(path3));
           expect(folder.canonicalizePath(join('.', 'baz')), equals(join(path, 'baz')));
           expect(folder.canonicalizePath(join(path2, '.', 'baz')), equals(join(path2, 'baz')));
         });
       });
     });
 }