Description:
------------
Output buffering function don't catch the output of a 'virtual' call.

For example, the following code produces 'ba' (where coso.html contains 'b')

<?
ob_start();
virtual("/coso.html");
$c=ob_get_contents();
ob_end_clean();

print "a";
print $c;
?>


Expected result:
----------------
Virtual output should be catched by the ob functions. The above code should print

'ab'

instead of

'ba'

Actual result:
--------------
The above code prints the virtual output before the ob_end_clean() call