the death of GdbCommandType & co.
instead of passing callback codes and dispatching them in a huge switch statement, pass around member function pointers as real callbacks. some codes which did not actually invoke a callback were completely eliminated. hope this doesn't impair debugging. ;) as a "side effect", command categorization by code is gone - there is a proper flag field for that now. as a real side effect, some suppressed assert failures might be back now. fix them properly if they do ...