Add (failing) source_update_test.dart.

dart/tests/try/test_try.dart

Index: dart/tests/try/test_try.dart
diff --git a/dart/tests/try/test_try.dart b/dart/tests/try/test_try.dart
new file mode 100644
index 0000000000000000000000000000000000000000..6a0971996da8b1990acc6a9dff29ff6d4fbea0b1
--- /dev/null
+++ b/dart/tests/try/test_try.dart
@@ -0,0 +1,20 @@
+// 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 trydart.test_try;
+
+export 'dart:html';
+
+export '../../site/try/src/interaction_manager.dart' show
+    InteractionContext,
+    InteractionManager;
+
+export '../../site/try/src/ui.dart' show
+    mainEditorPane;
+
+export '../../pkg/expect/lib/expect.dart';
+
+export 'test_case.dart';
+
+export 'mock_try.dart';