Again removed test30_call table from ddl script and also had to do some code formatting at test31. Of what I recall there where class variables that where only needed by one method and did not conform to our naming conventions for class variables and a lot of lines with wrong indention. Also one of the table names did not start with test31. In addition some of the tables got not reset before test execution.
I have fixed all this myself and added release notes so that the patch now is ready to commit.
Having said that all tests already run without failures against mysql.