Error log gets truncated when mysqld is restarted by MTR

mysql-test/include/check-warnings.test:
  Since server doesn't have log-error, get it from env. var. set by MTR
mysql-test/lib/My/ConfigFactory.pm:
  "Hide" log-error in a comment
mysql-test/mysql-test-run.pl:
  "Hide" log-error in my.cnf by comment
  add --console to arguments on Windows
  Move .err file to var/log

Problems with use of share/mysql dir
Explicitly look for "english" language file

Perl crashes when MTR 2 tries to start v1
Replaced require with system()

- remove the disbling of all ssl_* tests now when certs are fixed.

 - Properly set --bindir=$path_client_bindir and --basedir=$basedir by adding %s format specifier

 - Fix faulty regex used for filtering out suspicious warnings, causing
   warnings/errors from previous tests to be reported

 - Disable the two patterns that previously have been faulty - for now.

 - Fix the regex for finding core files ie. anything that starts with "core" 
 - Add collection of *.dmp files on windows.

 - Remove double escape of [ and ]

 - Make a rough filtering of the servers error log and write
   all suspicious warnings to $error_log.warnings
   The .warnings file is then examined more carefully by check_warnings.test
 - This will speed things up, doing all of this in a server running
   under valgrind takes far too long time.

 - Add a "skip-ssl=1" to [mysqltest] section so that 
   mysqltest will not run with ssl turned on by default 
   but stil be able to turn it on when requested
 - This avoids that check_warnings and check_testcase
   connects to the server woth SSL turned on

 - pass empty "--plugin-dir" if simple parser was not found.

 - Pass verbose flag to My::SafeProcess also when starting
   check_warnings and run_on_all

 - default parallel to 1(again)

 - turn auto detection of parallelism value ON again

 - Clear test variables "comment" and "logfile" to make sure thay aren't
  already set from previous run of same test
 - Print warning if test result already set and set it anyway

 - Don't save ndb_*_fs directory after test failure

SIGABRT is sent to relevant processes after a timeout


client/mysqltest.cc:
  Fixed signal handlers to mysqltest actually dumps core
mysql-test/lib/My/CoreDump.pm:
  Added support for dbx
mysql-test/lib/My/SafeProcess.pm:
  Added dump_core to force process to dump core
mysql-test/lib/My/SafeProcess/safe_process.cc:
  Traps SIGABRT and sends this on to child
mysql-test/mysql-test-run.pl:
  When test times out, force core dumps on mysqltest and servers

Log output of mysqltest when running check-testcase together
with errput. Remove --silent option for mysqltest when running
check-testcase/check-warnings


mysql-test/mysql-test-run.pl:
  Log output of mysqltest when runinng check-testcase together with errput.
  Remove --silent option for mysqltest when running check-testcase/check-warnings

Don't do the symlink if running on Windows

mysql-test/lib/My/File/Path.pm:
  Extend 'copytree' to take an optional "umask" parameter that will be used while copying the files
mysql-test/mysql-test-run.pl:
  Pass umask 0022 to copytree so that the copied files will be created world readable and the mysqld
  can LOAD DATA INFILE them

            (server crash)

Altering a table with fulltext index[es] which use
pluggable fulltext parser may cause server crash
in debug builds.

The problem was that ALTER TABLE code wrongly assigned
fulltext parser name.

Also fixed that altering a table with fulltext index[es]
leave stale fulltext parser locks, which prevent
fulltext parsers from being uninstalled after
ALTER TABLE.

mysql-test/include/have_simple_parser.inc:
  Added support for testing simple fulltext parser.
mysql-test/mysql-test-run.pl:
  Added support for testing simple fulltext parser.
mysql-test/r/fulltext_plugin.result:
  A test case for BUG#39746.
mysql-test/r/have_simple_parser.require:
  Added support for testing simple fulltext parser.
mysql-test/t/fulltext_plugin-master.opt:
  A test case for BUG#39746.
mysql-test/t/fulltext_plugin.test:
  A test case for BUG#39746.
sql/sql_table.cc:
  Fixed that alter table wrongly assigns fulltext parser
  name. parser_name member is only available during
  table creation. When we open existing table we must
  get parser_name from plugin_ref, which is handled
  by plugin_name() macro.
sql/table.cc:
  Moved code that releases fulltext parsers into
  free_table_share(). This fixes stale fulltext parser
  locks set by ALTER TABLE, which are preventing fulltext
  parsers from being uninstalled.

Adding --loose-skip-falcon option to the mysqld options provided by MTR (v2) during mysqld bootstrap in order to avoid plugin (in this case Falcon) initialization of static variables etc. Options --loose-skip-innodb and --loose-skip-ndbcluster were already included.

This will fix Bug#41014 (falcon_bug_39708 fails in pushbuild in 6.0-rpl: "succeeded - should have failed")
in the case of MTR v2 (which currently is available in -rpl branches only). 
MTR v1 (e.g. in main 6.0 branch) does not have this problem.

It would be more ideal to remove the --loose-skip-* options and provide a single option disabling all plugin initialization instead, or have bootstrap do this by default. Server modifications are (most likely) needed to be able to do that.


mysql-test/mysql-test-run.pl:
  Reintroduced the --loose-skip-falcon bootstrap option used by the previous version of this test runner.

Added $glob_basedir/sbin to search path for relevant binaries

mysql-test/mysql-test-run.pl:
  Remove tmp-directory on MTR start

Altered how we copy data from mysql-test/std_data on Windows to match what we are doing in 5.1 and 6.0

mysql-test/mysql-test-run.pl:
  Clarified error message printed when test cleanup check fails.

1. mysqltest.cc - added flush to log file after each executed command in a testcase.
2. mtr shows 20 last lines from test case log file if timeout reached.
3. Optimizing the code by Magnus review.
4. It is partially fix bug#40150

 - Change the logic slightly for when and how errors from
   check-warnings and check-testcase are reported. The prevoius logic
   reporting testfailed twice and that might have caused this.
 - Also print result code returned from mysqltest when it is "unexpected" 

 - Add copy of mtr v1 and make it possible to run it using MTR_VERSION=1