mapPTermM : (PTerm' nm -> Core (PTerm' nm)) -> PTerm' nm -> Core (PTerm' nm)mapPTerm : (PTerm' nm -> PTerm' nm) -> PTerm' nm -> PTerm' nmsubstFC : FC -> PTerm' nm -> PTerm' nmReplace the FCs in a term with the one provided.
The current implementation is not correct: we're only substituting
in PTerm but it should be enough for our purposes (making sure the
ellipsis used in a with clause's LHS refers to the correct line).