Use "package:" imports for pub.

test/lish/cloud_storage_upload_provides_an_error_test.dart

Index: test/lish/cloud_storage_upload_provides_an_error_test.dart
diff --git a/test/lish/cloud_storage_upload_provides_an_error_test.dart b/test/lish/cloud_storage_upload_provides_an_error_test.dart
index fd0dda8dddf69a6d790ed43209a3c9ad8047320d..4857b4535a4a2a5a4019595050943eb4d6ff3a21 100644
--- a/test/lish/cloud_storage_upload_provides_an_error_test.dart
+++ b/test/lish/cloud_storage_upload_provides_an_error_test.dart
@@ -2,11 +2,11 @@
 // 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.
 
+import 'package:pub/src/io.dart';
 import 'package:scheduled_test/scheduled_test.dart';
 import 'package:scheduled_test/scheduled_server.dart';
 import 'package:shelf/shelf.dart' as shelf;
 
-import '../../lib/src/io.dart';
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import 'utils.dart';