Description:
------------
It seems like register_shutdown_function doesn't take a param of array(obj, method):

  register_shutdown_function(array(&$this, 'MyDestructor'));

---
Fails with this error:

Warning: Unknown(): Unable to call Array() - function does not exist in Unknown on line 0.

Reproduce code:
---------------
<?php
class Object {
   var $somevar = "foo";

   function Object() {
      $somevar = "bar";
      register_shutdown_function(array(&$this, 'MyDestructor'));
  }

   function MyDestructor() {
       # Do useful destructor stuff here...
   }
}

# Now create the object as follows and then 'MyDestructor'
# will be called on shutdown and will be able to operate on
# the object as it ended up... not as it started!
$my_object =& new Object;
?>


Expected result:
----------------
Pseudo destructor to perform properly with register_shutdown_function taking an array(obj, method).

Actual result:
--------------
Warning: Unknown(): Unable to call Array() - function does not exist in Unknown on line 0.