Description:
------------
I expected, that i cannot call a non-static method in a parent's parent class with ParentClassName::method() from a child class. But it works even on E_STRICT. I think this should be a bug!

Reproduce code:
---------------
class A {
    private $myVar;   
    public function test() { 
        $this->myVar = 'test';
        echo 'A::test()' . "\n";
    }
}
class B extends A { 
    public function test() { 
        echo 'B::test()' . "\n"; 
    }
}
class C extends B { 
    public function test() 
    { 
        echo 'C::test()' . "\n";
        A::test();
    }
} 
$c = new C; 
$c->test();

Expected result:
----------------
Non-static method A::test() should not be called statically

Actual result:
--------------
C::test
A::test