Description:
------------
Code given produces fatal error:
Can't inherit abstract function A::foo() (previously declared abstract in B) in foo.php on line 20

Reproduce code:
---------------
<?php
interface A
{
    public function foo($id);
}

abstract class B
{
    abstract public function foo($id);
}

class C extends B
{
    public function foo($id)
    {
        echo "foo\n";
    }
}

class D extends C implements A {}

var_dump(new D);
?>


Expected result:
----------------
But is expected to run cleanly.