fix routerlist/pick_directory_server_impl in light of 12538

src/test/test_dir_common.c

@@ -143,6 +143,7 @@ dir_common_gen_routerstatus_for_v3ns(int idx, time_t now)
       rs->addr = 0xC0000203;
       rs->or_port = 500;
       rs->dir_port = 1999;
+      rs->is_v2_dir = 1;
       /* Running flag (and others) cleared */
       break;
     case 4:

src/test/test_routerlist.c

@@ -241,6 +241,8 @@ test_router_pick_directory_server_impl(void *arg)
   node_router2 = node_get_mutable_by_id(router2_id);
   node_router3 = node_get_mutable_by_id(router3_id);
 
+  node_router1->is_possible_guard = 1;
+
   node_router1->is_running = 0;
   node_router3->is_running = 0;
   rs = router_pick_directory_server_impl(V3_DIRINFO, flags, NULL);