- Rename old advance_iterate(), with the 'start' parameter, as advance_iterate_base()
- Introduce new advance_iterate() that is a wrapper around advance_iterate_base(A_FIRST)
- Turn advance_iterate_all() as wrapper around advance_iterate_base(A_NONE)
- Adjust all users of advance_iterate() - all of them wanted iteration from A_FIRST, so now use new advance_iterate() (none use advance_iterate_base() directly)
- Rename old advance_iterate(), with the 'start' parameter, as advance_iterate_base()
- Introduce new advance_iterate() that is a wrapper around advance_iterate_base(A_FIRST)
- Turn advance_iterate_all() as wrapper around advance_iterate_base(A_NONE)
- Adjust all users of advance_iterate() - all of them wanted iteration from A_FIRST, so now use new advance_iterate() (none use advance_iterate_base() directly)