contains auto_increment columns.  (Bug #6633)


innobase/include/lock0lock.h:
  Replaced lock_get_table()
  with lock_get_src_table() and lock_is_table_exclusive()
innobase/lock/lock0lock.c:
  Replaced lock_get_table()
  with lock_get_src_table() and lock_is_table_exclusive()
sql/ha_innodb.cc:
  ha_innobase::write_row(): Improve the ALTER TABLE optimization
  (do intermediate COMMIT also if table contains auto_increment columns)