CREATED AS LATIN1

There are two issues here:
i>  The debug build hits an assert due to empty diagnostics area
    if there is an error in parsing the ALTER VIEW statement while
    fixing view dependencies.

ii> While creating view definition, the character set of view is
    not considered. The view definition is created in default
    system character set. If the view was originally created with
    different character set, the table name used in the view might
    not be recognized. In this case, view is marked invalid.

Fix:
i>  When my_error() is called from bootstrap thread, error_handler_hook
    is set to my_message_stderr(). It does not set diagnostics area.
    The fix introduces my_message_bootstrap.

    It will print the error in the error log in standard format.
    It will set the diagnostics area in case of error.

ii> Use the character set in which view was created to execute
     ALTER VIEW statement.

This patch fixes two other bugs:
- Bug#24600054 : MYSQL 8.0 UPGRADE - MESSAGES IN MYSQLD LOG WITHOUT
                 DATETIME [NOTE] INFO

  my_message_bootstrap calls sql_print_error which prints the error
  in standard format.

- Bug#24606219 : DD_UPGRADE_TEST FAILS DUE TO MISSING
                 I_S.INNODB_TRX_LOCKS TABLE

  Test case is enabled as it passes with this fix.