Merge branch 'bb-10.2-mariarocks-wlad' of https://github.com/mariadb/server into bb-10.2-mariarocks-wlad

Default to static release (previously static debug was used in debug
builds, but not is appears to be too slow)

Restore MYSQL_SYSVAR_UINT64_T and MYSQL_SYSVAR_SIZE_T in
plugin.h

They use much more disk space than all other tests in rocksdb test suite

Don't use Perl autodie module as there are platforms where it is not present

Default to static release (previously static debug was used in debug
builds, but not is appears to be too slow)

We are hitting this
https://github.com/facebook/mysql-5.6/issues/569
and we are not ready to merge the fix currently

Restore MYSQL_SYSVAR_UINT64_T and MYSQL_SYSVAR_SIZE_T in
plugin.h

Some Windows enviroments don't have uint64_t, and we dont really need
that type. Assume 64-bit integers take 8 bytes.

remove hard-coded paths (that assumed we're in a source tree)
remove various shell/perl/awk/whatsnot scripts, use mysqltest and perl
remove numerous --exec /some/unix/tool commands, use mysqltest and perl

1. Special mode to search in error logs: if SEARCH_RANGE is not set,
   the file is considered an error log and the search is performed
   since the last CURRENT_TEST: line
2. Number of matches is printed too. "FOUND 5 /foo/ in bar".
   Use greedy .* at the end of the pattern if number of matches
   isn't stable. If nothing is found it's still "NOT FOUND",
   not "FOUND 0".
3. SEARCH_ABORT specifies the prefix of the output.
   Can be "NOT FOUND" or "FOUND" as before,
   but also "FOUND 5 " if needed.

namely, restart_mysqld_with_option.inc and kill_and_restart_mysqld.inc -
use restart_mysqld.inc instead.

Also remove innodb_wl6501_crash_stripped.inc that wasn't used anywhere.

don't use internal server collation symbol names, use collation
properties and collation IDs, they are much more stable.

trx::has_logged_persistent(): Renamed from trx_is_redo_rseg_updated().
Determines if a transaction has generated any persistent undo log.

trx::has_logged(): Renamed from trx_is_rseg_updated().
Determines if a transaction has generated any undo log.