MDEV-33813 ERROR 1021 (HY000): Disk full (./org/test1.MAI); waiting for someone to free some space

Fixed that internal temporary tables are not waiting for freed disk space.

Other things:
- 'kill id' will now kill a query waiting for free disk space instantly.
  Before it could take up to 60 seconds for the kill would be noticed.
- Fixed that sorting one index is not using MY_WAIT_IF_FULL for temp files.
- Fixed bug where share->write_flag set MY_WAIT_IF_FULL for temp files.

It is quite hard to do a test case for this. Instead I tested all
combinations interactively.

sql/sql_class.h

@@ -8185,6 +8185,9 @@ extern THD_list server_threads;
 
 void setup_tmp_table_column_bitmaps(TABLE *table, uchar *bitmaps,
                                     uint field_count);
+C_MODE_START
+void mariadb_sleep_for_space(unsigned int seconds);
+C_MODE_END
 
 #endif /* MYSQL_SERVER */
 #endif /* SQL_CLASS_INCLUDED */