Problem: After START SLAVE, the Slave_IO_Status column of
SHOW SLAVE STATUS goes from No to Yes asynchronously. That
caused sporadic failures on pushbuild in rpl_stm_until since
the test contains SHOW SLAVE STATUS right after START SLAVE.
Fix: Wait until Slave_IO_Status becomes Yes after each
START SLAVE.

Problem: mtr --max-test-fail=0 should allow unlimited number
of errors, but stops after the second error.
Fix: It's just a typo in mysql-test-run.pl

Problem: mysqlbinlog_base64 fails because the binlog contains
traces from previous test cases.
Fix: Make have_log_bin reset the master's binlog.

Post-post-push fix. The result file for rpl_rbr_to_sbr needs to be 
updated. While I was there, made rpl_rbr_to_sbr clean up after itself
by reverting @@binlog_format to the value it had before the test
started.

This is not a fix to the bug. I'm just pushing a change to the
test case that will produce debug info when the test fails next
time.

Post-push fix. The previous patch did 'reset master' at the wrong place.

Post-push fixes: forgot to commit an updated result file.

Post-push fixes: I forgot to include the new files
start_slave.inc and stop_slave.inc in the previuos push.

removing the option files

Problem 1: tests often fail in pushbuild with a timeout when waiting
for the slave to start/stop/receive error.
Fix 1: Updated the wait_for_slave_* macros in the following way:
- The timeout is increased by a factor ten
- Refactored the macros so that wait_for_slave_param does the work for
the other macros.
Problem 2: Tests are often incorrectly written, lacking a
source include/wait_for_slave_to_[start|stop].inc.
Fix 2: Improved the chance to get it right by adding
include/start_slave.inc and include/stop_slave.inc, and updated tests
to use these.
Problem 3: The the built-in test language command
wait_for_slave_to_stop is a misnomer (does not wait for the slave io
thread) and does not give as much debug info in case of failure as
the otherwise equivalent macro
source include/wait_for_slave_sql_to_stop.inc
Fix 3: Replaced all calls to the built-in command by a call to the
macro.
Problem 4: Some, but not all, of the wait_for_slave_* macros had an
implicit connection slave. This made some tests confusing to read,
and made it more difficult to use the macro in circular replication
scenarios, where the connection named master needs to wait.
Fix 4: Removed the implicit connection slave from all
wait_for_slave_* macros, and updated tests to use an explicit
connection slave where necessary.
Problem 5: The macros wait_slave_status.inc and wait_show_pattern.inc
were unused. Moreover, using them is difficult and error-prone.
Fix 5: remove these macros.
Problem 6: log_bin_trust_function_creators_basic failed when running
tests because it assumed @@global.log_bin_trust_function_creators=1,
and some tests modified this variable without resetting it to its
original value.
Fix 6: All tests that use this variable have been updated so that
they reset the value at end of test.

when resetting replication tests.  If not, circular replication setups
will leave cruft in the slaves binary log.

Bug #37940    rpl_dual_pos_advance fails sporadically on pushbuild,fail wait_for_slave_to_stop
Bug #37941    rpl_flushlog_loop fails sporadically on pushbuild
  
Several tests fail when waiting for the slave to stop in what
appears to be timeouts caused by a timeout value set to low. 
This causes false failures when the servers are loaded.
  
In order to try to avoid false negatives, we increase the
timeout 10 times and also print some more information in the
event that the slave fails to stop when expected to.
  
We add a printout of the current processes running to be able
to see if any process have been executing for an unexpectedly
long time, and also print the binlog events at the position
indicated by SHOW SLAVE STATUS.

This is not a fix, it just disables the erroneous test cases.

Problem: the test syncs slave by a 'wait_condition' waiting until
table t1 has 5000 rows. However, there is no guarantee that t1
makes it to the slave before the wait_condition.
Fix: sync_slave_with_master just after t1 was created.

The file tree in mtr's vardir has changed so an old
hard-coded path in mysql-test/t/subselect.test didn't
work.
Fix: update the paths in the test.

positions changed. Fixed by removing binlog positions from
output, and also:
 - removed code not used to verify the tested property
 - added comments

Made the test innodb_max_dirty_pages_pct_func clean up after itself.

Problem: rpl_ndb_transaction fails because it assumes nothing
is written to the binlog at a certain point. However, ndb may
binlog updates in ndb system tables at a nondeterministic
time point after an ndb table update has been committed.
Fix: break the test into two. rpl_ndb_transaction still does
the ndb updates needed by the first half of the test. The new
test case rpl_bug26395 includes the part that assumes nothing
more will be written to the binlog.

Problem 1: main.loaddata tried to trigger an error caused by
reading files outside the vardir, by reading itself. However,
if loaddata.test is not world-readable (e.g., umask=0077),
then another error is triggered.
Fix 1: allow the other error too.
Problem 2: rpl_slave_skip and rpl_innodb_mixed_dml tried to
copy a file from mysql-test/suite/rpl/data to mysql-test/var
and then read it. That failed too if umask=0077, since the
file would not become world-readable.
Fix 2: move the files from mysql-test/suite/rpl/data to
mysql-test/std_data and update tests accordingly. Remove
the directory mysql-test/suite/rpl/data.

   Bug#36787 Test funcs_1.charset_collation_1 failing
Details:
1. Skip charset_collation_1 if charset "ucs2_bin" is
   missing (property which distincts "vanilla" builds
   from the others)
2. Let builds with version_comment LIKE "%Advanced%"
   (found them for 5.1) execute charset_collation_3.
3. Update comments charset_collation.inc so that they
   reflect the current experiences.

Bug#37492 timing bug in subselect.test
+ similar weaknesses found during testing
+ replace error numbers by error names