TESTS: CRASH, CORRUPTION, 4G MEMOR

Issue: Valgrind errors due to checksum and optimize 
       query angaist archive tables with null columns.
       Table record buffer was not initialized.

Solution: Initialize the record buffer.

                      CREATE_TIME IN INFORMATION_SC

It was impossible to determine MEMORY table creation time,
since it wasn't stored/exposed.

With this patch creation time is saved and it is available via
I_S.TABLES.CREATE_TIME.

Note: it was decided that additional analysis is required before
implementing UPDATE_TIME. Thus this patch doesn't store UPDATE_TIME.

Re-write the test, to make pushbuild green.
Workaraound for broken pow() function on:
SunOS tyr40 5.10 Generic_127112-05 i86pc i386 i86pc

(dbx) where
current thread: t@1
=>[1] Item_func_pow::val_real(this = 0x238af20) (optimized), at 0xaa8d13 (line ~1980) in "item_func.cc"

(dbx) print pow(1.01, 1.0)
pow(1.01, 1) = 1.01
(dbx) print pow(1.01, 10.0)
pow(1.01, 10) = 1.1046221254112
(dbx) print pow(1.01, 100.0)
pow(1.01, 100) = 2.7048138294215
(dbx) print pow(1.01, 1000.0)
pow(1.01, 1000) = 20959.155637814
(dbx) print pow(1.01, 10000.0)
pow(1.01, 10000) = 1.635828711189e+43
(dbx) print pow(1.01, 100000.0)
pow(1.01, 100000) = Infinity
(dbx) print pow(1.01, 1000000.0)
pow(1.01, 1000000) = Infinity
(dbx) print pow(1.01, 10000000.0)
pow(1.01, 10000000) = Infinity
(dbx) print pow(1.01, 100000000.0)
pow(1.01, 100000000) = Infinity
(dbx) print pow(1.01, 1000000000.0)
pow(1.01, 1000000000) = 0.0
(dbx) print pow(1.01, 10000000000.0)
pow(1.01, 10000000000) = 0.0

(dbx) print value
value = 1.0111111111111
(dbx) print val2
val2 = 8796093022207.0

(dbx) print pow(value, val2)
pow(value, val2) = 0.0

so it seems pow(1.01, y)
returns Infinity for large y, but then starts to return 0.0 for even larger values of y.

Automerged bundle from committed and approved cset.

Replace part of the patch that Kevin apparently forgot to push.
Fix the bug also in the built-in InnoDB of MySQL 5.1.

I cannot explain why the test case was not failing without the
full patch.

This was rb:762, approved by me.

Extra fix: 'if (p5 < p5_a + P5A_MAX)' is not portable.
p5 starts out pointing to a static array, then may point
to a buffer on the stack, then may point to malloc()ed memory.

The problem occurred when indexes are added between the time that an
UNDO record is created and the time that the purge thread comes around
and deletes the old secondary index entries.  The purge thread would
hit an assert when trying to build a secondary index entry for
searching.  The problem was that the old value of those fields were not
in the UNDO record since they were not part of an index when the UPDATE
occured. 
A test case was added to innodb-index.test.

The problem occurred when indexes are added between the time that an
UNDO record is created and the time that the purge thread comes around
and deletes the old secondary index entries.  The purge thread would
hit an assert when trying to build a secondary index entry for
searching.  The problem was that the old value of those fields were not
in the UNDO record since they were not part of an index when the UPDATE
occured. 
A test case was added to innodb-index.test.

WITH MYSQL_REFRESH()

reset_slave_info.all was not initialized.

We fix this by setting lex->reset_slave_info.all= false in
the lex_start routine, which is called before every statement.

mysql-test/r/func_str.result:
  New test cases.
mysql-test/t/func_str.test:
  New test cases.
strings/dtoa.c:
  Increasing the buffer size slightly made some queries pass without leaks.
  Adding Bfree(p51, alloc) fixed the remaining leaks.

  Added options --boot-gdb etc.
  Extended gdb_arguments() with optional input argument
  Cannot use set args in gdb init file, as run < <input> kills them (?)

  Added simple cut-off w/warning if > one million lines

For some reason the test authentication plugin accepted connection with arbitrary password. But the intention of the plugin is that password should equal to the authentication string and in the later versions of the server connection fails if password is wrong. So I have updated auth_rpl test to specify the correct password.

               FULLTEXT INDEXES

myisamchk may create incorrect fulltext index for compressed
tables. Incorrect data pointer size was used while creating
fulltext index.

mysql-test/r/myisampack.result:
  A test case for BUG#11761180.
mysql-test/t/myisampack.test:
  A test case for BUG#11761180.
storage/myisam/ft_boolean_search.c:
  rec_reflength on share may have adjustments required for
  compressed tables and must be used instead of rec_reflength
  on base info.
storage/myisam/ft_nlq_search.c:
  rec_reflength on share may have adjustments required for
  compressed tables and must be used instead of rec_reflength
  on base info.
storage/myisam/mi_check.c:
  rec_reflength on share may have adjustments required for
  compressed tables and must be used instead of rec_reflength
  on base info.
storage/myisam/mi_write.c:
  rec_reflength on share may have adjustments required for
  compressed tables and must be used instead of rec_reflength
  on base info.

  Quick fix: run mysql-stress-test.pl via a wrapper test
  Amend mtr to run just that test when using --stress
  Updated mysql-stress-test.pl to exit(1) if wrong options