Backport "Fix problems in checking that a constructor is uninhabited for exhaustive match checking" to 3.3 LTS#517

tgodzik wants to merge 2 commits intolts-3.3scala/scala3-lts:lts-3.3from

backport-lts-3.3-23403scala/scala3-lts:backport-lts-3.3-23403Copy head branch name to clipboard