Reorganize tests for samples so the test is discoverable from the sample

samples/tests/samples/browser/swipe_test.dart

Index: samples/tests/samples/browser/swipe_test.dart
diff --git a/samples/tests/samples/browser/swipe_test.dart b/samples/tests/samples/browser/swipe_test.dart
deleted file mode 100644
index c85894143752b113b60e8b40e0d923a029ffe752..0000000000000000000000000000000000000000
--- a/samples/tests/samples/browser/swipe_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, 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 swipe_test;
-
-import '../../../swipe/web/swipe.dart' as swipe;
-
-// @static-clean
-
-/**
- * This test exists to ensure that the swipe sample compiles without errors.
- */
-void main() {
-  
-}
-