Description:
------------
The SQLiteDatabase class is not extendable while other databases classes such as mysqli are extendable.


Reproduce code:
---------------
<?php
class s1 extends SQLiteDatabase
{


}

$s1 = new s1('db', 0666, $error);
?>


Expected result:
----------------
no output


Actual result:
--------------
PHP Fatal error:  Class s1 may not inherit from final class (SQLiteDatabase) in 1.php on line 6

Fatal error: Class s1 may not inherit from final class (SQLiteDatabase) in 1.php on line 6