Thanks a lot for bringing this to our attention.
Sadly, the answer to your question is "No, we don't support RefasterJS anymore."
It's not good for us to have not-really-supported code in our repository, so I've filed this issue with further explanation and a checklist of cleanup tasks.
https://github.com/google/closure-compiler/issues/3702There have been lots of changes to JS since 2015, so it's really not surprising that a RefasterJS binary built back then doesn't work on today's code.
Sorry you tripped over this.
We really appreciate you taking the time to let us know about it.
Best regards,
Bradford