some duplicate code.

There were some cases where the slave SQL thread could stop without
the pool of parallel replication worker threads being correctly
de-activated.

Mdev 7658 10.0

This is an addendum to the fix for MDEV-7026. The ARM memory model is
similar to that of PowerPC and thus needs the same semantics with
respect to memory barriers. That is, os_atomic_test_and_set_*_release()
must be a store with a release barrier followed by a full
barrier. Unlike x86 using __sync_lock_test_and_set() which is
implemented as “exclusive load with acquire barriers + exclusive store”
is insufficient in contexts where os_atomic_test_and_set_*_release()
macros are used.

When the slave processes the master restart format_description event,
parallel replication needs to complete any prior events before processing
the restart event (which closes temporary tables and such stuff).

This happens in wait_for_workers_idle(), however it was not waiting long
enough. The wait was using wait_for_prior_commit(), but at that points table
can still be open. This lead to assertion in this case.

So change wait_for_workers_idle() to wait until all worker threads have
reached finish_event_group(), at which point all tables should have been
closed.

We don't fix the bug itself, we just make regex functions display errors
returned from pcre_exec() as MariaDB warnings.

The test did not have a proper replication cleanup

Restoring the line affected by 5.5=>10.0 merge

On Windows, the files get checked out with CRLF thanks
to .gitattributes.

on REPAIR don't do table-specific stuff for views
(because even if the view has a temp table opened for it,
it's not opened all the way down the engine. In particular,
Aria crashes in maria_status() because MARIA_HA* info - that is
table->table->file->file - is NULL)

initializers.

c99 style for assigning structure members

modified:
  tabxml.cpp
added:
  xml_html.test
  xml_html.result
  beers.xml
  coffee.htm

- Fix MDEV-7935 by suppressing error resetting code in delete_or_rename_table.
  However, the issue is that this code was added because without it an assertion
  was raised in some cases. Unfortunately I can't remember what were these cases.
  Therefore fixing it in this case will perhaps make a new crash happening on another cases.
modified:
  ha_connect.cc

- Add the UDF Json_Array_Delete.
modified:
  jsonudf.cpp

in when using vio->read_timeout (and write_timeout) to set
timeouts of a new vio, as in:

  vio_timeout(vio, 0, old_vio.read_timeout)
  vio_timeout(vio, 0, old_vio.write_timeout)

remember that timeouts are stored in ms, but vio_timeout()'s
argument is in seconds.

Gave priority to password field when using a native authentication
plugin.

Also, prevented a user from setting an invalid auth_string, when using
native authentication.

specify RECOMPILE_FOR_EMBEDDED and disable tests in suite.pm

including the big commit
  commit 305130361bf72726de220f3d2b2787395e10be61
  Author: Marc Alff <marc.alff@oracle.com>
  Date:   Tue Feb 10 11:31:32 2015 +0100

      WL#8354 BACKPORT DIGEST IMPROVEMENTS TO MYSQL 5.6

(with the following commits) and related changes in sql/

(See MDEV-7440 Build fails in libgroonga on Solaris)

MDEV-8082 ON UPDATE is not preserved by CREATE TABLE .. SELECT

and remove duplicates