2023-11-30

183a5fd BE: make FoldCtx::new() constructor (Alan Zimmerman)
e2401cc BE: Rationalise FoldBody usage (Alan Zimmerman)
227df57 BE: Rationalise fold functions (Alan Zimmerman)
4fdf78b BE: removing fold::Strategy::TopDown (Alan Zimmerman)
d81d14d BE: remove fold::WithMacros (Alan Zimmerman)
050074b BE: Start introducing fold::Strategy::VisibleMacros and InvisibleMacros (Alan Zimmerman)
605266b BE: Remove fold::Strategy::BottomUp (Alan Zimmerman)
a05ae61 BE: Remove fold::Strategy::Both (Alan Zimmerman)