Description:
------------
When specifying a parameter object type in a method signature, if the object was stored in an array prior to being passed, the method signature revokes the object type even though var_dump reports it to be correct!



Reproduce code:
---------------
[file: obj.php]

class Obj1{
  //.. object methods/params herein
}

---------------------------------------
[file: main.php]

function foo( Obj1 $x ){}

$a = array();
$o = new Obj1();
$a[0] = $o;

foo( $a[0] );

Expected result:
----------------
shouldn't see any errors

Actual result:
--------------
Fatal error: Argument 1 passed to foo() must be an object of class Obj1