Remove old index and search implementations.

pkg/analysis_server/test/search/element_references_test.dart

 // Copyright (c) 2014, 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 test.search.element_references;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/services/index/index.dart';
@@ skipping 215 matching lines @@
   test_file_libraryUnit_atImportDirective() async {
     String fileLib = '$testFolder/my_lib.dart';
     String fileUser = '$testFolder/userA.dart';
     String codeUser = "import 'my_lib.dart'; // U";
     addFile(fileLib, 'library my.lib;');
     addFile(fileUser, codeUser);
     addTestFile('''
 import 'my_lib.dart'; // T
 ''');
     await findElementReferences('import ', false);
-    expect(searchElement.kind, ElementKind.FILE);
+//    expect(searchElement.kind, ElementKind.FILE);

[Brian Wilkerson, 2016/03/14 18:57:32]

Remove this?

+    expect(searchElement.kind, ElementKind.LIBRARY);
     expect(results, hasLength(2));
     // in U
     {
       SearchResult result = results.singleWhere((result) {
         return result.location.file == fileUser;
       });
       expect(result.location.offset, codeUser.indexOf("'my_lib.dart'; // U"));
       expect(result.location.length, "'my_lib.dart'".length);
     }
     // in T
@@ skipping 632 matching lines @@
   print(vvv);
 }
 ''');
     Request request = new SearchFindElementReferencesParams(testFile, 0, false)
         .toRequest('0');
     Response response = await waitResponse(request);
     expect(response.error, isNotNull);
     expect(response.error.code, RequestErrorCode.NO_INDEX_GENERATED);
   }
 }