-- We make an unfolding *even for loop-breakers*.
-- Reason: (a) It might be useful to know that they are WHNF
-- (b) In TidyPgm we currently assume that, if we want to
-- We make an unfolding *even for loop-breakers*.
-- Reason: (a) It might be useful to know that they are WHNF
-- (b) In TidyPgm we currently assume that, if we want to