memcache_dirty : #4609 memcache patch from facebook not ported to mysql 5.5
4472 : #4521 MDL for alter table in 5.5 prohibits this test from having any chance of working

tokudb_drop_part_table_668:
tokudb_drop_simple_table_668:
5585: times out
2952: Not for 5.5
fileops-2: Not for 5.5
fileops-3: Not for 5.5
fileops-4: Not for 5.5
xa-2: Not for 5.5
6053: N/A

checkpoint_lock_2: test can not work when the checkpoint_safe_lock is a fair rwlock

