Added test cases for bug #9938.
item.h:
  Fixed bug #9938: missing method not_null_tables for Item_ref.

  Added missing comment for fix of #10561.

  Post review corrections for optimization request #10561.

  Added test cases for optimization request #10561.
opt_range.cc, sql_select.cc:
  Fixed bug #10561: an optimization request to allow
  range analysis for NOT IN and NOT BETWEEN.

into mdk10.(none):/home/reggie/bk/mysql-5.0

into mdk10.(none):/home/reggie/bk/mysql-5.0

The problem was that on Windows the access method indicates that access to file 
such as "com1" and "lpt1" is allowed (since they are device names) and
this causes mysql to attempt to open them as databases or tables.

The fix was to write our own my_access method that uses other Win32 functions
to determine if the given argument is indeed a file and has to requested
mode.

into mysql.com:/home/pem/work/mysql-5.0

                  procedure.
  by simply disabling 'load' in stored procedures, like it's already disabled
  for prepared statements. (They must be made "re-execution" safe before
  working with either PS or SP.)

into mysql.com:/mnt/archive/svoj/mysql/mysql-5.0

Portability fixes

into sanja.is.com.ua:/home/bell/mysql/bk/work-bug-5.0

into mysql.com:/home/my/mysql-5.0

into gluh.mysql.r18.ru:/home/gluh/release/mysql-5.0

into mysql.com:/usr/home/ram/work/mysql-4.1

into mysql.com:/home/my/mysql-5.0

Fixed errors reported by valgrind (some errors in NDB remains)

into gluh.mysql.r18.ru:/home/gluh/release/mysql-5.0

  "REFERENCED_TABLE_NAME", "REFERENCED_COLUMN_NAME" fields into
  KEY_COLUMN_USAGE table

into  mysql.com:/home/jimw/my/mysql-5.0-clean

into  mysql.com:/home/jimw/my/mysql-5.0-build

into neptunus.(none):/home/msvensson/mysql/mysql-5.0

into neptunus.(none):/home/msvensson/mysql/mysql-5.0-build

Cset exclude: msvensson@neptunus.(none)|ChangeSet|20050425090838|60886

into mdk10.(none):/home/reggie/bk/mysql-5.0

into mysql.com:/home/svoj/devel/mysql/mysql-5.0-build

compilation fixes

into neptunus.(none):/home/msvensson/mysql/mysql-5.0-build

sql_udf.cc:
  changed dl_name to udf->dl in mysql_create_function

we need proper rounding there

into neptunus.(none):/home/msvensson/mysql/mysql-5.0-build