Support GHC 8.6.2

[jkachmar]

This adds support and CI coverage for GHC 8.6.2.

If this looks good, and CI passes smoothly, would you be amenable to this package being added to the Stackage nightly snapshots?

[patrickt]

This looks good to me.

@jkachmar, I’ve opened an issue for Stackage. @robrix is on vacation right now, but I think he’ll be amenable to it - we want people to use this package, after all!

[patrickt]

Not sure why this is wedged in the builders.

[robrix]

@patrickt: I selected the wrong job in the branch protection settings. Fixed that.

[robrix]

Thanks so much @jkachmar!

If this looks good, and CI passes smoothly, would you be amenable to this package being added to the Stackage nightly snapshots?

I’ve no objection so long as they’re cool with having a 0.x package in there. (In particular, we aren’t promising API stability quite yet.)

[jkachmar]

Thanks for getting this merged in!

I don't think there should be any objection to API stability, and once the updated version is published to Hackage I can run the Stackage curator again to make sure that everything works together.

How would you like the attribution/maintainership to be set up in Stackage?

e.g. @patrickt is the Stackage maintainer for postgresql-transactional and so shows up in the build-constraints file like this: https://github.com/commercialhaskell/stackage/blob/master/build-constraints.yaml#L2798-L2799

[robrix]

@jkachmar: Could you make me the maintainer, with robrix@github.com for the email address please? 🙏

[robrix]

(I’ve just published 0.1.2.0 to hackage today: http://hackage.haskell.org/package/fused-effects-0.1.2.0)