Hello,
I've got a patch [1] for the CoreErlang package. It fixes a parsing bug and adds Typeable+Data instances to the syntax tree.
I was unable to contact the developers/maintainers via provided email. (No response in ~3 weeks.) The package hasn't been touched for three years, since first uploaded.
I would like to take over maintenance of the package, and upload the fix ASAP.
Regards,
Alex Kropivny