Fix the resolution of uri-based part-of directives in the SDK (issue 29598)

pkg/analyzer/test/src/context/source_test.dart

Index: pkg/analyzer/test/src/context/source_test.dart
diff --git a/pkg/analyzer/test/src/context/source_test.dart b/pkg/analyzer/test/src/context/source_test.dart
index 7d63c4575bd95a37f8089c03b27f72569a68a4bc..2857e8632ed0cfe2c97419bd1d8a2dc9845bd6a1 100644
--- a/pkg/analyzer/test/src/context/source_test.dart
+++ b/pkg/analyzer/test/src/context/source_test.dart
@@ -2,8 +2,6 @@
 // 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 analyzer.test.src.context.source_test;
-
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/src/context/source.dart';
 import 'package:analyzer/src/generated/source.dart';