pub site: update dependencies and fix analyzer

app/test/handlers_test_utils.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 pub_dartlang_org.handlers_test;
 
 import 'dart:async';
 import 'dart:convert';
 
 import 'package:unittest/unittest.dart';
@@ skipping 142 matching lines @@
   }
 
   String renderPkgIndexPage(List<Package> packages,
                             List<PackageVersion> versions,
                             PageLinks links) {
     return Response;
   }
 
   String renderPkgShowPage(Package package,
                            List<PackageVersion> versions,
-                           List<Uri> downloadUris,
-                           PackageVersion latestVersion,
+                           List<Uri> versionDownloadUrls,
+                           PackageVersion selectedVersion,
+                           PackageVersion latestStableVersion,
+                           PackageVersion latestDevVersion,
                            int totalNumberOfVersions) {
     return Response;
   }
 
   String renderPkgVersionsPage(String package,
                                List<PackageVersion> versions,
                                List<Uri> versionDownloadUrls) {
     return Response;
   }
 
@@ skipping 38 matching lines @@
 
   final Function searchFun;
 
   SearchServiceMock(this.searchFun);
 
   Future<SearchResultPage> search(
       String query, int offset, int numResults) async {
     return searchFun(query, offset, numResults);
   }
 }