This patch has two purposes:
(1) To refactor the code so that
   {Write|Update|Delete}_rows_log_event_old does not use code from
   {Write|Update|Delete}_rows_log_event. Before refactoring there
   was the following problem: whenever we modifed the code for new
   events, it affected the old events. This is bad, as it makes
   maintainance difficult. After refactoring, we can safely edit the
   new code without affecting old events. So, if we for instance
   modify the binary format of new events, we no longer need to worry
   about how the new code reads old events.
(2) To fix BUG#31581.

These two objectives are reached by the following changes:
 - Merged Rows_log_event into Old_rows_log_event and
   {Write|Update|Delete}_rows_log_event into
   {Write|Update|Delete}_rows_log_event_old.
 - Fixed the bug by replacing {WRITE|UPDATE|DELETE}_ROWS_EVENT by
   PRE_GA_{WRITE|UPDATE|DELETE}_ROWS_EVENT.
 - Added comments to log_event_old.h

(This patch is identical to the previously committed patch which was
a collapse of three changesets, except that it adds assert(0) to
constructors for old types of row log events that should never be
called.)

into  koti.dsl.inet.fi:/home/elkin/MySQL/TEAM/FIXES/5.1/bug31170-rpl_innodb_bug28430_fails

Pushing test case for bug only. Bug already fixed as a result of the patch for BUG#19958.

Non-deterministic parameters  of  SHOW SLAVE STATUS are masked out
by means of using the standard include-macro.

The masked-out parameters are not needed by the logics of the original
tests. What is need to demonstre that replication is not stopped remains.

into  kindahl-laptop.dnsalias.net:/home/bk/b12092-mysql-5.1-rpl

into  kindahl-laptop.dnsalias.net:/home/bk/b28086-mysql-5.1-rpl

DBUG_OFF #ifdefs to eliminate two warnings in replication tree.

into  kindahl-laptop.dnsalias.net:/home/bkroot/mysql-5.1-rpl

into  koti.dsl.inet.fi:/home/elkin/MySQL/merge-5.1

into  koti.dsl.inet.fi:/home/elkin/MySQL/TEAM/FIXES/5.0/bug27571_asyn_killed_flags

refining non-deterministic tests.
The new Bug@32148 is in the way. Adjuting the tests to be somehow useful.
 

tests fixing: refreshing the results file.

In BUG#30244 added FOUND_ROWS() as an unsafe function, but that
works only in mixed mode under 5.1. There is a workaround that
can be used in statement-based mode either under 5.0 or 5.1
where the result of FOUND_ROWS() is stored into a user vari-
able and used that way instead. This will replicate correctly
even under statement-based replication, since it will write
a User_var entry to the binary log. For some other cases, the
value has to be passed explicitly.

This patch adds tests to demonstrate that the workarounds docu-
mented for statement-based replication works as advertised, and
does more extensive tests for cases that does not work under sta-
tement-based replication actually work under mixed mode by switch-
ing to row-based replication.

into  koti.dsl.inet.fi:/home/elkin/MySQL/TEAM/FIXES/5.0/bug28597-log_name_upgrade

into  koti.dsl.inet.fi:/home/elkin/MySQL/merge-5.1

fixing tests

removing extra tests (on 5.1 that's been already done)

into  koti.dsl.inet.fi:/home/elkin/MySQL/merge-5.1

commit is specific for 5.0 to eliminated non-deterministic tests.
Those tests run only in 5.1 env where there is a necessary devices such
as processlist table of info_schema.

into  koti.dsl.inet.fi:/home/elkin/MySQL/TEAM/FIXES/5.0/bug27571_asyn_killed_flags

non-deterministic tests refining.
This particular patch tested on two archs.

non-deterministic tests execution on some platforms.

into  kindahl-laptop.dnsalias.net:/home/bkroot/mysql-5.1-rpl

refining tests as they appear to be non-deterministic.

into  koti.dsl.inet.fi:/home/elkin/MySQL/TEAM/FIXES/5.0/bug28597-log_name_upgrade

Since bug@20166, which replaced the binlog file name generating to base
on pidfile_name instead of the previous glob_hostname, the binlog file
name suddenly started to be stored solely in the absolute path format,
including a case when --log-bin option meant a relative path.
What's more serious, the path for binlog file can lead unrequestedly 
to pid-file directory so that after any proper fix for this bug
there might be similar to the bug report consequences for one who
upgrades from post-fix-bug@20166-pre-fix-bug@28597 to post-fix-bug@28597.

Fixed with preserving`pidfile_name' (intr.by bug@20166) but stripping
off its directory part. This restores the original logics of storing
the names in compatible with --log-bin option format and with the
requirement for --log-bin ralative path to corresond to the data directory.
Side effects for this fix:

effective fixing bug@27070, refining its test;
ensuring no overrun for buff can happen anymore (Bug#31836 
insufficient space reserved for the suffix of relay log file name);
bug#31837  --remove_file $MYSQLTEST_VARDIR/tmp/bug14157.sql missed
in rpl_temporary.test;
fixes Bug@28603  Invalid log-bin default location;

into  mysql.com:/home/ksm/commits/mysql-5.1-new-rpl

into  koti.dsl.inet.fi:/home/elkin/MySQL/TEAM/FIXES/5.1/bug31554-rpl_truncate

Actually, the failure happened with 3innodb as well. Most probably
the reason is in failing to delete a binlog file on __NT__ so that
that master increments the index of the binlog file.
The test results hide valueable warning that windows could generate
about that.

The scope of this fix is to make sure we have such warning and
to lessen chances for binlog file being held at time of closing.
The dump thread is getting a good chance to leave and 
release the file for its successful deletion.

We shall watch over the two tests as regression is not excluded.
In that case we would have an extra info possibly explaining why
__NT__ env can not close/delete the file.
However, regardless of that reason, there is alwasy workaround to mask out
non-deterministic binlog index number.

into  pilot.mysql.com:/data/msvensson/mysql/mysql-5.1-rpl

Marking statements containing USER() or CURRENT_USER() as unsafe, causing
them to switch to using row-based logging in MIXED mode and generate a
warning in STATEMENT mode.

  Corrected issues found in preparing to push code

into  mysql.com:/usr/clones/rpl-push

into  kindahl-laptop.dnsalias.net:/home/bkroot/mysql-5.1-rpl

destination. Removing wrong (local temp) tests.