Port to Coq 8.18 WIP

[jaccokrijnen]

branch wip/coq-8.18, using opam switch coq.8.18.

• [x] Forward port Bart's QuickChick fix. Opened PR https://github.com/QuickChick/QuickChick/pull/345

• [x] Forward port custom QuickChick patch for extraction. This is in branch https://github.com/Xiving/QuickChick/tree/8.18/fix-mutual/no-extraction

• [ ] QuickChick and equations are incompatible: both define a Derive vernac command. This is a problem with Coq, there is a patch in the making on the Coq side

  • [ ] Use new patch (https://github.com/coq/coq/pull/18345) when it is released
  • [x] Possible workaround: patch custom QuickChick and rename Derive vernac (see https://coq.zulipchat.com/#narrow/stream/237977-Coq-users/topic/Anomaly.3A.20bad.20vernac.20extend/near/403566924)

• [x] Do fixes in proofs (ltac seems to have a new way of automatic naming)

• [ ] Update nix setup in plutus for extraction

[jaccokrijnen]

I've disabled QuickChick for now. Problem:

File "./src/PlutusIR/Analysis/UniqueBinders/DecOpt.v", line 26, characters 0-35:
Error:
Anomaly
"Uncaught exception Failure("No Checkers or Producers for relation: appears_bound_in_tm")."
Please report at http://coq.inria.fr/bugs/.