innobase/include/lock0lock.h:
  Replaced lock_get_ix_table() with lock_get_table().
innobase/lock/lock0lock.c:
  Replaced lock_get_ix_table() with lock_get_table().
innobase/include/row0mysql.h:
  row_lock_table_for_mysql(): Added parameter mode.
innobase/row/row0mysql.c:
  row_lock_table_for_mysql(): Added parameter mode.
sql/ha_innodb.cc:
  ha_innobase::write_row(): Make ALTER TABLE commits more robust:
  account for conversions from non-InnoDB format,
  do not attempt to commit if there are other than
  a single IX or IS lock on the source table, and
  the source table is in InnoDB format.  This
  prohibits intermediate commits for OPTIMIZE TABLE
  if the table contains an auto_increment field.