Major version symlinks

Until recently, I managed my own farm of /opt/ghc-x.y.z installations. But I guess this is precisly what ghcup is for, so I am trying to use it.

One feature that I was hoping to see is that ~/.ghcup/bin/ would contain links ghc-8.6, ghci-8.6 etc. that point to the latest ghcup-installed release of that series.

Usually I don’t care much about the difference between ghc-8.6.4 and ghc-8.6.5 and just like to specify cabal new-build -w ghc-8.6 instead of trying to remember which is the latest version.