As part of the discussion about Typeable, GHC 7.8 is going to include a Data.Type.Equality module that provides a polykinded type equality data type.
I'd like to propose that we rename this type to (==) rather than the (:=:) it was developed under.
We are already using (+), (-), (*), etc. at the type level in type-nats, so it would seem to fit the surrounding convention.
I've done the work of preparing a patch, visible here:
Normally, I'd let this run the usual 2 week course, but we're getting down to the wire for 7.8's release. Once 7.8 ships, we'd basically be stuck with the current name forever.
Discussion Period: 1 week
-Edward Kmett