Clean up package imports and library names

pkg/analyzer/test/file_system/resource_uri_resolver_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.resource_uri_resolver;
+library analyzer.test.file_system.resource_uri_resolver_test;
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:unittest/unittest.dart';
 
 import '../reflective_tests.dart';
 import '../utils.dart';
 
 main() {
@@ skipping 37 matching lines @@
     var uri = new Uri(scheme: 'file', path: '/test.dart');
     Source source = resolver.resolveAbsolute(uri);
     expect(source, isNotNull);
     expect(resolver.restoreAbsolute(source), uri);
     expect(
         resolver.restoreAbsolute(
             new NonExistingSource(source.fullName, null, null)),
         uri);
   }
 }