Merge branch 'jk/optim-promisor-object-enumeration'

Collection of what is referenced by objects in promisor packs have
been optimized to inspect these objects in the in-pack order.

* jk/optim-promisor-object-enumeration:
  is_promisor_object(): walk promisor packs in pack-order

packfile.c

@@ -2275,7 +2275,8 @@ int is_promisor_object(const struct object_id *oid)
 		if (has_promisor_remote()) {
 			for_each_packed_object(add_promisor_object,
 					       &promisor_objects,
-					       FOR_EACH_OBJECT_PROMISOR_ONLY);
+					       FOR_EACH_OBJECT_PROMISOR_ONLY |
+					       FOR_EACH_OBJECT_PACK_ORDER);
 		}
 		promisor_objects_prepared = 1;
 	}