Add missing test case for parser

Pull-request: #345

Signed-off-by: William Desportes <[email protected]>

Author: williamdes

tests/Parser/AlterStatementTest.php

@@ -52,6 +52,7 @@ public function alterProvider()
             array('parser/parseAlterUser5'),
             array('parser/parseAlterUser6'),
             array('parser/parseAlterUser7'),
+            array('parser/parseAlterUser8'),
         );
     }
 }