show that shm communication still works on windows,
and that we can't overflow the base-name.
mysql-test/t/windows_shm-master.opt:
Bug#24924: shared-memory-base-name that is too long causes buffer overflow
start a server with shm communication if we're on
windows.
mysql-test/t/windows_shm.test:
Bug#24924: shared-memory-base-name that is too long causes buffer overflow
.opt has started a server with shm communication
if we're on windows. now start a client with shm
and connect to that server.
