operations.


innobase/include/lock0lock.h:
  Added lock_clust_rec_read_check_and_lock_alt(),
  a variant of lock_clust_rec_read_check_and_lock()
  without the parameter "offsets".
innobase/lock/lock0lock.c:
  Added lock_clust_rec_read_check_and_lock_alt(),
  a variant of lock_clust_rec_read_check_and_lock()
  without the parameter "offsets".
innobase/row/row0ins.c:
  row_ins_foreign_check_on_constraint(): Do not allocate offsets
  from stack. This reduces the stack space consumption of
  ON UPDATE CASCADE operations by 400 bytes per cascaded UPDATE
  operation.