upload-pack: pass upload_pack_data to got_oid()

As we cleanup 'upload-pack.c' by using 'struct upload_pack_data'
more thoroughly, let's pass that struct to got_oid(), so that
this function can use all the fields of the struct.

This will be used in followup commits to move a static variable
into 'upload_pack_data'.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

upload-pack.c

@@ -393,8 +393,8 @@ static void create_pack_file(struct upload_pack_data *pack_data)
 	die("git upload-pack: %s", abort_msg);
 }
 
-static int got_oid(const char *hex, struct object_id *oid,
+static int got_oid(struct upload_pack_data *data,
-		   struct object_array *have_obj)
+		   const char *hex, struct object_id *oid)
 {
 	struct object *o;
 	int we_knew_they_have = 0;
@@ -422,7 +422,7 @@ static int got_oid(const char *hex, struct object_id *oid,
 			parents->item->object.flags |= THEY_HAVE;
 	}
 	if (!we_knew_they_have) {
-		add_object_array(o, NULL, have_obj);
+		add_object_array(o, NULL, &data->have_obj);
 		return 1;
 	}
 	return 0;
@@ -478,7 +478,7 @@ static int get_common_commits(struct upload_pack_data *data,
 			continue;
 		}
 		if (skip_prefix(reader->line, "have ", &arg)) {
-			switch (got_oid(arg, &oid, &data->have_obj)) {
+			switch (got_oid(data, arg, &oid)) {
 			case -1: /* they have what we do not */
 				got_other = 1;
 				if (data->multi_ack