Fix bug #8677: if one used LOCK TABLES, created an InnoDB temp table, and did a multi-table update where a MyISAM table was the update table and the temp table was a read table, then InnoDB aserted in row0sel.c because n_mysql_tables_in_use was 0. Also, we remove the assertion altogether and just print an error to the .err log if this important consistency check fails. Then it is up to the user to read the .err log and notice the problem if there still are errors in MySQL's table locking.

into mysql.com:/home/bkroot/mysql-4.1

into mysql.com:/home/my/mysql-4.1

into 51.0.168.192.in-addr.arpa:/Users/bell/mysql/bk/work-4.1

independently from the expression it is initialized from.
In other words, this change treats a user variable like
a table with one column and one record. Discussed with 
PeterG, Serg and Lars. This change also simplifies replication
allowing not to replicate variables' coercibility.

into 51.0.168.192.in-addr.arpa:/Users/bell/mysql/bk/work-4.1

into mysql.com:/home/my/mysql-4.1

Change string->float conversion to delay division as long as possible.
This gives us more exact integer->float conversion for numbers of type '123.45E+02' (Bug #7740)

  Treat unknown characters straight in a query as syntax error, rather skipping it as a space character.

  optimize test_if_minus() when not UCS2 support is compiled.

  Fix compiler complaint.

  Bugs: #8385: utf8_general_ci treats cyrillic letters I and SHORT I as the same

  bug#7571:
  Server & Client characterset are shown under different decriptions
  Switch them into the correct order.

into mysql.com:/home/mysqldev/tulin/mysql-4.1

into mysql.com:/home/bk/b7879-mysql-4.0

Backporting Monty's fix for 5.0 into 4.1.

into deer.(none):/home/hf/work/mysql-4.1.clean

Some variable wasn't moved to the initial state during mysql_server_end

into mysql.com:/home/jimw/my/mysql-4.1-clean

into mysql.com:/home/jimw/my/mysql-4.1-clean

into mysql.com:/home/jimw/my/mysql-4.1-clean

into mysql.com:/home/jimw/my/mysql-4.1-clean