These are very hard to get right without hooks into the Lisp
environment (at least they are for me!). For example, we always
uniqify the variable names, but sometimes that doesn't do what we
On assertions: it would really be nice to have at least just one extra namespace for local variables, I suppose, with printnames that are the same as the global namespace. new-fn then translates from symbols in the global namespace (which is what read should always emit) to local variable namespace. Aw crick, it's a hard problem.
Also, current bug with this implementation: (fn (do) `(do ,do)) will fail, I'll need to analyze do. And stuff like (fn (b) (tag b (prn "foo"))).