Attempting to fix indexed_db IE10 test timeouts.

tests/html/indexeddb_2_test.dart

 library IndexedDB1Test;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_config.dart';
 import 'dart:async';
 import 'dart:html' as html;
 import 'dart:indexed_db' as idb;
 import 'dart:collection';
 import 'utils.dart';
 
 // Write and re-read Maps: simple Maps; Maps with DAGs; Maps with cycles.
 
-const String DB_NAME = 'Test';
+const String DB_NAME = 'Test2';
 const String STORE_NAME = 'TEST';
 const int VERSION = 1;
 
 testReadWrite(key, value, check,
               [dbName = DB_NAME, storeName = STORE_NAME, version = VERSION]) {
 
   createObjectStore(e) {
     var store = e.target.result.createObjectStore(storeName);
     expect(store, isNotNull);
   }
@@ skipping 65 matching lines @@
     go('test_DAG', obj2);
     go('test_cycle', obj3);
     go('test_simple_splay', obj4);
     go('const_array_1', const [const [1], const [2]]);
     go('const_array_dag', const [const [1], const [1]]);
     go('array_deferred_copy', [1,2,3, obj3, obj3, 6]);
     go('array_deferred_copy_2', [1,2,3, [4, 5, obj3], [obj3, 6]]);
     go('cyclic_list', cyclic_list);
   }
 }