Description:
------------
If I call a public function of a base class from a derived class directly, the base class's function can use private properties of the base class. If I call it via call_user_func() or call_user_func_array(), it acts like an overloaded function of the derived class, and doesn't see the private property (it ends up creating a dynamic property for the object).

One or the other of these is wrong. I'm hoping it's the second one.

Reproduce code:
---------------
<?php
class foo
{
    private $a;
    private $b;
    public function set_a($v) { $this->a = $v; }
    public function set_b($v) { $this->b = $v; }
}
class bar extends foo { }
$f = new foo;
$f->set_a(1);
call_user_func(array($f,'set_b'), 2);
$b = new bar;
$b->set_a(1);
call_user_func(array($b,'set_b'), 2);
print_r($f);
print_r($b);
?>

Expected result:
----------------
foo Object
(
    [a:private] => 1
    [b:private] => 2
)
bar Object
(
    [a:private] => 1
    [b:private] => 2
)

Actual result:
--------------
foo Object
(
    [a:private] => 1
    [b:private] => 2
)
bar Object
(
    [a:private] => 1
    [b:private] =>
    [b] => 2
)