Description:
------------
When a user function has some arguments which pass by reference, and use call_user_func_array to call the function, I find a bug.

In PHP 5.2 the code doesn't have any warning, But in PHP 5.3 snap I get a warning.

Reproduce code:
---------------
function test(&$arg){
	echo $arg;
}
$arg = 'OK<br>';
$arg_array1 = array(&$arg);
$arg_array2 = array($arg);
call_user_func_array('test', $arg_array1); // OK
call_user_func_array('test', $arg_array2); // get Warning



Expected result:
----------------
OK
OK

Actual result:
--------------
OK

Warning: Parameter 1 to test() expected to be a reference, value given in D:\DevWeb.bak\UserDir\test\index.php on line 9