comment
remove FIXME #2888, now bug is fixed
expose top-level mtwt-resolve-crate fn
add call to hygienic resolve
added FIXME comment
drop back to a simple gensym approach for fresh-name.

this is necessary so that the new idents are connected to the original strings.
this is important both for error messages, and so that top-level refs get connected
to the right things.
comments
starting to add sexp encoder