This is the first part of #4619. After this the priority is to first get Conway predicates to use the new Mismatch type, and then the rest of the remaining eras.
Checklist
[x] Commit sequence broadly makes sense and commits have useful messages
[x] New tests are added if needed and existing tests are updated
[x] All visible changes are prepended to the latest section of a CHANGELOG.md for the affected packages.
New section is never added with the code changes. (See RELEASING.md)
[x] When applicable, versions are updated in .cabal and CHANGELOG.md files according to the
versioning process.
[x] The version bounds in .cabal files for all affected packages are updated.
If you change the bounds in a cabal file, that package itself must have a version increase. (See RELEASING.md)
[x] Code is formatted with fourmolu (use scripts/fourmolize.sh)
[x] Cabal files are formatted (use scripts/cabal-format.sh)
[x] hie.yaml has been updated (use scripts/gen-hie.sh)
Description
This is the first part of #4619. After this the priority is to first get Conway predicates to use the new
Mismatchtype, and then the rest of the remaining eras.Checklist
CHANGELOG.mdfor the affected packages. New section is never added with the code changes. (See RELEASING.md).cabalandCHANGELOG.mdfiles according to the versioning process..cabalfiles for all affected packages are updated. If you change the bounds in a cabal file, that package itself must have a version increase. (See RELEASING.md)fourmolu(usescripts/fourmolize.sh)scripts/cabal-format.sh)hie.yamlhas been updated (usescripts/gen-hie.sh)