2018-01-10 Murray Cumming 2.99.10 2017-11-09 Kjell Ahlstedt slot_base::set_parent(): Create a dummy slot_rep if necessary set_parent() must always store the supplied parent pointer and cleanup function pointer, or else there may be a memory leak. The pointers are stored in slot_rep. Bug 167714 2017-11-09 Kjell Ahlstedt visit_each.h: Add an #include