Unify the server and plugin versions of the generators

pkg/analysis_server/test/integration/search/find_member_references_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(FindMemberReferencesTest);
   });
 }
 
 @reflectiveTest
 class FindMemberReferencesTest extends AbstractAnalysisServerIntegrationTest {
   String pathname;
@@ skipping 23 matching lines @@
     expect(searchParams.results, isNotEmpty);
     expect(searchParams.results, hasLength(2));
 
     SearchResult result = searchParams.results.first;
     expect(result.location.file, pathname);
     expect(result.isPotential, isTrue);
     expect(result.kind.name, SearchResultKind.INVOCATION.name);
     expect(result.path.first.name, 'baz');
   }
 }