Description:
------------
This bug is linked to bug #30161.

var_dump() should produce an object.

Reproduce code:
---------------
<?php
class FIIFO {

	public function __construct() {
		throw new Exception;
	}

}

class hariCow extends FIIFO {

	public function __construct() {
		try {
			parent::__construct();
		} catch(Exception $e) {
		}
	}
	
	public function __toString() {
		return "Rusticus in asino sedet.";
	}

}


$db = new hariCow;

var_dump($db);
?>

Expected result:
----------------
Something like 'Object ...'

Actual result:
--------------
UNKNOWN:0