Build failures in classy-prelude-1.0.0 and older

[sjakobi]

See e.g. this issue with v0.12.8: https://stackoverflow.com/questions/70052100/classyprelude-hs2291-error-failed-to-load-interface-for-data-textual-encodi

Other versions have problems too though: https://matrix.hackage.haskell.org/#/package/classy-prelude

It would be good to revise the affected versions so build tools won't attempt to build them with incompatible dependencies.

[sjakobi]

As a Hackage trustee, I have created revisions for v0.12.0 to v0.12.8 that I hope will remove any broken build plans for these versions. See e.g. https://hackage.haskell.org/package/classy-prelude-0.12.8/revisions/

Other versions still show broken build plans though.

[sjakobi]

I think I've squashed most of the remaining failures, e.g. in https://hackage.haskell.org/package/classy-prelude-0.8.3.1/revisions/.

Since the matrix builder is currently broken (haskell-CI/hackage-matrix-builder#82), it's unfortunately hard to check now, but I'll optimistically close this issue nonetheless.

[sjakobi]

I've made another revision for classy-prelude-1.0.0: https://hackage.haskell.org/package/classy-prelude-1.0.0/revisions/