information_schema is current database
  skip the check of I_S tables if table is derived table


mysql-test/r/information_schema.result:
  fix for bug#14089 FROM list subquery always fails when 
                    information_schema is current database
    test case
mysql-test/t/information_schema.test:
  fix for bug#14089 FROM list subquery always fails when 
                    information_schema is current database
    test case