Description:
------------
When a Class implements an interface, the class may not be initialized before the declaration of this class.

Reproduce code:
---------------
$test = new Test;
echo $test;

interface Something {
	function increment ();
}

class Test implements Something {
	public $value = 0;
	
	function increment () {
		$this->value++;
		return $this->value;
	}
}

Expected result:
----------------
Object id #1

Actual result:
--------------
Fatal error: Class 'Test' not found in *path*/testcast.php on line 3