pr-9034

synopsis: Add `mkVersionIntervals` for creating a `VersionIntervals` from a list
packages: Cabal-syntax
prs: #9034

description: {

If external tools want to change the version intervals of dependencies, they
need to be able to create a `VersionRange` from a `[VersionInterval]` list. Adding
the function `mkVersionIntervals` makes this possible again.

}