Description:
------------
I think there is a bug when you want to cover private method in child class, and run it by public inherited method. See example:

Reproduce code:
---------------
class Bar
{
    private function shmoo()
    {
        print 'bar';
    }
    
    public function exe()
    {
        $this->shmoo();
    }
}

class FooBar extends Bar
{
//change to protected, and public see what happens
    private function shmoo()
    {
        print 'foobar';
    }
}
$bar = new FooBar;
$bar->exe();

Expected result:
----------------
foobar

Actual result:
--------------
bar