[TESTS] Added missing files for Zend_Loader test suite

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@20281 44c647ce-9c0f-0410-b52a-842ac1e357ba

tests/Zend/Loader/_files/Zfns/Foo.php

@@ -0,0 +1,6 @@
+<?php
+namespace Zfns;
+
+class Foo
+{
+}