TestEquality instance for Compose
I was looking for this instance in base
and couldn't find it. There might be a good reason for that, but in case there isn't, here it is!
Two notes:
- Is the version number right? I just based it on what's on Hackage
- I didn't take the time to set up a GHC build locally, I'm hoping CI will tell me if this doesn't compile for some reason.
Edited by Matthew Pickering