in case past GHC users find the warnings helpful.

* (cabal check) Add typed errors

* hlint Distribution.PackageDescription.Check

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

* Remove alphanum check from language prompt

* Remove unneded whitespace

* Add changelog for #8281

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

The existing Haddock documentation for `unAbiHash` and `mkAbiHash` appears to have been swapped, in error. This pull request swaps it back.

The extensions — all parsing-related — are undocumented and not used in
the wild, but not yet deprecated:
- AlternativeLayoutRule
- AlternativeLayoutRuleTransitional
- RelaxedLayout

and one other `cabal check` complaint.

Third party tools like `hackage-cli` rely on this API.
While `Distribution.Types.VersionInterval` does not export the Boolean
algebra operations union, intersection and complement on
`VersionIntervals`, the Legacy variant is still needed.

+ Update file-format-changelog.rst

* code-generators now marked to 3.8 spec

* cg test vers

Co-authored-by: Gershom Bazerman <gershom@arista.com>

* Update the SPDX License List to version 3.16

* Add changelog entry

* Add changelog entry

* Remove the Generic instance of LicenseId

* Remove tests for the Generic instance of Binary

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Same for "visibility is experimental feature"
With #7270 fixed, it's time to allow hackage uploads.

PWTExperimental is not used anymore, but for now I'm keeping it in case
we add other experimental features in the future, so we don't keep
removing and adding it (pushing CPP on users).

Since it isn't used though there is no way to run
cabal-testsuite/PackageTests/DuplicateExperimental
so I'm just removing that test.

Closes #6801

Resolves #7459

* Invalidate cache to unblock CI

* Add wasm32-wasi to recognized arch & os

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

* IndefUnitId (data constructor) was previously incorrectly renamed to
  OpenUnitId (type constructor) instead of DefiniteUnitId
* fix typo

Manually replayed from 41c9081f

Manually replayed from 45be9e44

manual replay of db2901dc

* initial parser pass

* first compiling pass

* get more stuff sort of working

* conditional parsing actually works

* error cleanup and downloads

* thread through http transport

* fix merge

* better errors and use extended project parsing uniformly

* elif support, maybe?

* fix outdated cmd, add tests, docs

* fix docs

* use legacyReadFields parser

* changelog

* cyclical import detection

* fix shadowing

* add missing file

* finish merge

* fix outstanding merge issue

* use existing config available when checking for compiler for package flags

* review comments

* add missing test file

* Update pr-7783

Co-authored-by: Gershom Bazerman <gershom@arista.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

This change derives the `Eq` type class on `DependencyMap` in the
`Distribution.Types` module.