fix bug #48724

PDO's getColumnMeta() doesn't return native_type for BIT, TINYINT and YEAR
Tests: PDO Mysql - update for fixed getColumnMeta()

The test has always been disabled... so it's never run anyway. Oh well.
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Tests: PDO Mysql - update for fixed getColumnMeta()
  fix bug #48724