* remove new InnoDB-specific ER_ and HA_ERR_ codes
* renamed few old ER_ and HA_ERR_ error messages to be less MyISAM-specific
* remove duplicate enum definitions (durability_properties, icp_result)
* move new mysql-test include files to their owner suite
* rename xtradb.rdiff files to *-disabled
* remove mistakenly committed helper perl module
* remove long obsolete handler::ha_statistic_increment() method
* restore the standard C xid_t structure to not have setters and getters
* remove xid_t::reset that was cleaning too much
* move MySQL-5.7 ER_ codes where they belong
* fir innodb to include service_wsrep.h not internal wsrep headers
* update tests and results
Contains also
MDEV-10547: Test multi_update_innodb fails with InnoDB 5.7
The failure happened because 5.7 has changed the signature of
the bool handler::primary_key_is_clustered() const
virtual function ("const" was added). InnoDB was using the old
signature which caused the function not to be used.
MDEV-10550: Parallel replication lock waits/deadlock handling does not work with InnoDB 5.7
Fixed mutexing problem on lock_trx_handle_wait. Note that
rpl_parallel and rpl_optimistic_parallel tests still
fail.
MDEV-10156 : Group commit tests fail on 10.2 InnoDB (branch bb-10.2-jan)
Reason: incorrect merge
MDEV-10550: Parallel replication can't sync with master in InnoDB 5.7 (branch bb-10.2-jan)
Reason: incorrect merge
