Adding test from 5.5

Author: lstrojny

ext/date/tests/date_default_timezone_get-4.phpt

@@ -0,0 +1,11 @@
+--TEST--
+date_default_timezone_get() function [4]
+--INI--
+date.timezone=Incorrect/Zone
+--FILE--
+<?php
+	echo date_default_timezone_get(), "\n";
+?>
+--EXPECTF--
+Warning: date_default_timezone_get(): Invalid date.timezone value 'Incorrect/Zone', we selected the timezone 'UTC' for now. in %sdate_default_timezone_get-4.php on line %d
+UTC