Port SplitIndexStore to Dart.

pkg/analysis_server/test/index/test_all.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.index.all;
 
 import 'package:unittest/unittest.dart';
 
 import 'b_plus_tree_test.dart' as b_plus_tree_test;
 import 'file_page_manager_test.dart' as file_page_manager_test;
 import 'lru_cache_test.dart' as lru_cache_test;
 import 'page_node_manager_test.dart' as page_node_manager_test;
+import 'split_store_test.dart' as split_store_test;
 
 
 /**
  * Utility for manually running all tests.
  */
 main() {
   groupSep = ' | ';
   group('index', () {
     b_plus_tree_test.main();
     page_node_manager_test.main();
     file_page_manager_test.main();
     lru_cache_test.main();
+    split_store_test.main();
   });
 }