Since it used /tmp-dir, it continues to fail on the same server
until the /tmp-dir is cleaned. (Another problem was that it
uses DATA/INDEX DIR without checking for symlink, which is needed)
Solution:
Moved all DATA/INDEX DIR test to a new partition_basic_symlink.inc file
and use this for myisam and innodb, also requiring symlinks and
not_windows.
(i.e. removed DATA/INDEX DIR use from several tests)