fix: reveal procedures and function in MySQL which are stored with correct case in mysql.proc

https://www.heidisql.com/forum.php?t=45182

Refs #2506

Author: ansgarbecker

source/dbstructures.mysql.pas

@@ -3360,12 +3360,12 @@ function TMySqlProvider.GetSql(AId: TQueryId): string;
       );
     qShowFunctionStatus: Result := IfThen(
       (FServerVersion >= 50000) and (FNetType <> ntMySQL_ProxySQLAdmin),
-      'SHOW FUNCTION STATUS WHERE Db = LOWER(%s)',
+      'SHOW FUNCTION STATUS WHERE LOWER(Db) = LOWER(%s)',
       ''
       );
     qShowProcedureStatus: Result := IfThen(
       (FServerVersion >= 50000) and (FNetType <> ntMySQL_ProxySQLAdmin),
-      'SHOW PROCEDURE STATUS WHERE Db = LOWER(%s)',
+      'SHOW PROCEDURE STATUS WHERE LOWER(Db) = LOWER(%s)',
       ''
       );
     qShowTriggers: Result := IfThen(