BUG#34790 - 'create server' doesn't handle out of memory scenario
            well enough

This is an addition to fixes for these bugs, which makes gcov
happy.


mysql-test/r/federated.result:
  CREATE SERVER is only tested by federated_server.test, which requires
  big-test option. Added dummy test case to make gcov happy.
mysql-test/t/federated.test:
  CREATE SERVER is only tested by federated_server.test, which requires
  big-test option. Added dummy test case to make gcov happy.
sql/sql_parse.cc:
  Make gcov happy.