test renaming overhaul: step 4 client tests

tests/dom/dart_object_local_storage_test.dart

 #library('DartObjectLocalStorageTest');
-#import('../../../../lib/unittest/unittest.dart');
-#import('../../../../lib/unittest/dom_config.dart');
+#import('../../lib/unittest/unittest.dart');
+#import('../../lib/unittest/dom_config.dart');
 #import('dart:dom');
 
 verify(var object) {
   final value = window.document;
   object.dartObjectLocalStorage = value;
   final stored = object.dartObjectLocalStorage;
   Expect.equals(value, stored);
 }
 
 main() {
@@ skipping 11 matching lines @@
       verify(storage);
   });
   test('unknown', () {
       var element = document.createElement('canvas');
       element.id = 'test';
       document.body.appendChild(element);
       element = document.getElementById('test');
       verify(element);
   });
 }