19:09:18karlosz_beach: is calling cons in HIR to make the rest arg HIR invariant breaking?
19:15:49karlosz_one thing i'd like to see is that the instructions are not too opaque, so that hir transformations could transparently optimize parts of the argument handling
19:16:41karlosz_especially with respect to &rest args where the rest parameter never needs to be consed because it is only queried by nth or via dolist