Description:
------------
NB: This issue is specific to PHP6 snaps. PHP5.2 and PHP5.3 snaps produce the expected output.

When using a callback of the form 'C::f' where class C is not yet defined, __autoload() is invoked with the fully qualified method name as an argument, rather than just the class name.

Reproduce code:
---------------
<?php
function __autoload($name) {
  echo "Autoload class: $name\n";
  if ($name == 'C') {
    class C { static function f() {	echo "In C::f()\n";	} }
  }
}

call_user_func('C::f');
?>

Expected result:
----------------
Autoload class: C
In C::f()


Actual result:
--------------
Autoload class: C::f

Warning: call_user_func() expects parameter 1 to be valid callback, string given in %s on line 9