Unify the server and plugin versions of the generators

pkg/analysis_server/test/integration/analysis/get_library_dependencies_test.dart

 // Copyright (c) 2017, 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.
 
-import 'package:analysis_server/plugin/protocol/protocol.dart';
+import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import '../integration_tests.dart';
+import '../support/integration_tests.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(GetLibraryDependenciesTest);
   });
 }
 
 @reflectiveTest
 class GetLibraryDependenciesTest extends AbstractAnalysisServerIntegrationTest {
   @failingTest
@@ skipping 18 matching lines @@
     Map<String, Map<String, List<String>>> packageMaps = result.packageMap;
 
     expect(libraries, contains(pathname));
     expect(libraries.any((String lib) => lib.endsWith('core/core.dart')), true);
 
     expect(packageMaps.keys, hasLength(1));
     Map<String, List<String>> map = packageMaps[packageMaps.keys.first];
     expect(map.keys, isEmpty);
   }
 }