server: Allow calling async_terminate() with STATUS_PENDING.

We still don't quite handle this completely correctly, but we should at least
avoid crashing the server due to a failed assertion.

Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

server/async.c

@@ -156,8 +156,6 @@ static void async_destroy( struct object *obj )
 /* notifies client thread of new status of its async request */
 void async_terminate( struct async *async, unsigned int status )
 {
-    assert( status != STATUS_PENDING );
-
     if (async->terminated) return;
 
     async->terminated = 1;

server/device.c

@@ -386,7 +386,6 @@ static void set_irp_result( struct irp_call *irp, unsigned int status,
 
     if (!file) return;  /* already finished */
 
-    /* FIXME: handle the STATUS_PENDING case */
     iosb->status = status;
     iosb->result = result;
     iosb->out_size = min( iosb->out_size, out_size );