ghc-8.0.2: Fix #44987 (#45014)

nix-env -f '<nixpkgs>' -qaP -A haskell.packages.ghc802

will run again, but the packages depending on ghc-compact will still not
build, as they have a constrain on base >= 4.10 and ghc 8.0.2 has base
4.9.1.0

pkgs/development/haskell-modules/configuration-ghc-8.0.x.nix

···
   filepath = null;
   ghc-boot = null;
   ghc-boot-th = null;
+  ghc-compact = null;
   ghc-prim = null;
   ghci = null;
   haskeline = null;