[ghc-contravariant/f19] (3 commits) ...use the right no -compat patch

[Jens Petersen]

Summary of changes:

  9d2abd3... downgrade to 0.5.2 for now (*)
  2725c0a... 0.5.2 source (*)
  7aafa2f... use the right no -compat patch (*)

(*) This commit already existed in another branch; no separate mail sent