+ REGISTER_ENUM(None);
+ REGISTER_ENUM(NewlyCreatedLeft);
+ REGISTER_ENUM(NewlyCreatedRight);
+ REGISTER_ENUM(NewlyCreatedBoth);
+ REGISTER_ENUM(Existing);
+ REGISTER_ENUM(ExistingNewlyCreatedLeft);
+ REGISTER_ENUM(ExistingNewlyCreatedRight);
+ REGISTER_ENUM(ExistingNewlyCreatedBoth);
+ REGISTER (_RegionSelectionAfterSplit);
+