MDEV-6050 MySQL Bug#13036505 62540: TABLE LOCKS WITHIN STORED FUNCTIONS ARE BACK IN 5.5 WITH MIXED AND ROW BI

cherry-pick revno 4053
committer: Gopal Shankar <gopal.shankar@oracle.com>
branch nick: sf_mysql-5.6
timestamp: Fri 2012-07-20 12:25:34 +0530
message:
  Bug#13036505 62540: TABLE LOCKS WITHIN STORED FUNCTIONS ARE BACK IN
                      5.5 WITH MIXED AND ROW BI.