Add diagnostic prints to determine why the 'queries inside InnoDB' might drift upwards
ha_innodb.cc:
  Add more print space to SHOW INNODB STATUS; remove possible memory leak in case there is an error


sql/ha_innodb.cc:
  Add more print space to SHOW INNODB STATUS; remove possible memory leak in case there is an error
innobase/trx/trx0trx.c:
  Add diagnostic prints to determine why the 'queries inside InnoDB' might drift upwards