Description:
------------
In my example type hinting in method foo() in child class is incompatible with same method in parent class. But it still working with E_STRICT.

Reproduce code:
---------------
error_reporting(E_ALL | E_STRICT);

class A {}

abstract class B {
	protected $bar;
	
	public function foo($bar) {
		$this->bar = $bar;
		echo "some\n";
		return $this;
	}
}

class C extends B
{
	public function foo(A $bar)
	{
		$this->bar = $bar;
		
		echo "not expected\n";
		return $this;
	}
}

$c = new C;
$c->foo(new A);


Expected result:
----------------
Fatal error: Declaration of C::foo() must be compatible with that of B::foo() 

Actual result:
--------------
not expected