Add test directive to include other files used by a test in its compiled output directory.

tests/standalone/io/https_unauthorized_test.dart

Index: tests/standalone/io/https_unauthorized_test.dart
diff --git a/tests/standalone/io/https_unauthorized_test.dart b/tests/standalone/io/https_unauthorized_test.dart
index a556626d863058f089544bf0c61fd6080b9f8a4d..f415a83787508c808f29d6dcdeb1bb4d7c73ba12 100644
--- a/tests/standalone/io/https_unauthorized_test.dart
+++ b/tests/standalone/io/https_unauthorized_test.dart
@@ -1,6 +1,9 @@
 // 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.
+//
+// OtherResources=certificates/server_chain.pem
+// OtherResources=certificates/server_key.pem
 
 // This test verifies that secure connections that fail due to
 // unauthenticated certificates throw exceptions in HttpClient.