Description:
------------
Calling mcrypt_generic_init() with bad values changes the resource type from mcrypt to Unknown.  It seems like what should happen is that the resource type should remain the same and that mcrypt_generic_init should simply do nothing.  Maybe output a warning (as it currently does) but not change the resource type.

A bad call to curl_setopt(), for example, doesn't change the resource type from curl to Unknown as demonstrated thusly:

<?php
$curl = curl_init();
@curl_setopt($curl);
var_dump($curl);
?>

Per that it doesn't seem like a bad call to mcrypt_generic_init() ought to change anything either.

Test script:
---------------
<?php
$mcrypt = @mcrypt_module_open(MCRYPT_DES, '', MCRYPT_MODE_ECB, '');
@mcrypt_generic_init($mcrypt, '', '');
var_dump($mcrypt);
?>

Expected result:
----------------
resource(4) of type (mcrypt)

Actual result:
--------------
resource(4) of type (Unknown)