Avoids an unhandled exception. Passing NULL as a ref pointer (which a
top-level [out] parameter necessarily is) is illegal, but this will be caught
in the CALCSIZE pass. This matches midl/widl behaviour in the -Os case.
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>