FULLTEXT INDEXES

myisamchk may create incorrect fulltext index for compressed
tables. Incorrect data pointer size was used while creating
fulltext index.

mysql-test/r/myisampack.result:
  A test case for BUG#11761180.
mysql-test/t/myisampack.test:
  A test case for BUG#11761180.
storage/myisam/ft_boolean_search.c:
  rec_reflength on share may have adjustments required for
  compressed tables and must be used instead of rec_reflength
  on base info.
storage/myisam/ft_nlq_search.c:
  rec_reflength on share may have adjustments required for
  compressed tables and must be used instead of rec_reflength
  on base info.
storage/myisam/mi_check.c:
  rec_reflength on share may have adjustments required for
  compressed tables and must be used instead of rec_reflength
  on base info.
storage/myisam/mi_write.c:
  rec_reflength on share may have adjustments required for
  compressed tables and must be used instead of rec_reflength
  on base info.