Description:
------------
Private __construct() can be called form inherited class constructor via parent::__construct();

I'm not sure, this was not reported, but I didn't found any this kind.

Also in PHP version 5.2 this was occured (not by me).

Thx.

Reproduce code:
---------------
<?php

class A{

private function __construct(){}
}

class B extends A{

public function __construct(){
parent::__construct();
}
}

$instance=new B();

?> 

Expected result:
----------------
Fatal error: Call to private method A::__construct() from context 'B'

Actual result:
--------------
no error - everything is fine