hlint: jailbreak to support latest version of cpphs

pkgs/development/tools/haskell/hlint/default.nix

···
   buildDepends = [
     cpphs filepath haskellSrcExts hscolour transformers uniplate
   ];
+  jailbreak = true;
   meta = {
     homepage = "http://community.haskell.org/~ndm/hlint/";
     description = "Source code suggestions";