Add local_num skeleton framework to deref/closure emit calls.
diff --git a/py/scope.c b/py/scope.c
index c581687..7f84410 100644
--- a/py/scope.c
+++ b/py/scope.c
@@ -103,6 +103,7 @@
     id_info->param = false;
     id_info->kind = 0;
     id_info->qstr = qstr;
+    id_info->local_num = 0;
     *added = true;
     return id_info;
 }