+ for n_group in n_groups do
+ v.visit n_group
+ if n_group != n_groups.last then v.add ", "
+
+ end
+
+ v.adds
+ v.visit n_kwdo
+ if can_inline then visit_loop_inline v else visit_loop_block v
+ end
+end
+
+redef class AForGroup
+ redef fun accept_pretty_printer(v) do