NdrClientCall already uses TRY/EXCEPT block if the procedure has
Oi_HAS_COMM_OR_FAULT in its Oi_flags, I've added similar block
to NdrAsyncClientCall but without mapping the fault code using
CommFaultOffsets because NdrAsyncClientCall doesn't have this
implemented.

An installer that I have here calls NdrAsyncClientCall in order
to query status of a not yet installed service, and that leads
to a crash due to RaiseException from inside of NdrAsyncClientCall.
With this patch it no longer crashes on an unhandled exception,
and then installs the service.
Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>