Merge branch '4e6-ghc-822rc1'

.travis.yml

@@ -20,6 +20,7 @@ env:
  - CABALVER=1.22 GHCVER=7.10.3
  - CABALVER=1.24 GHCVER=8.0.1
  - CABALVER=2.0  GHCVER=8.2.1
+ - CABALVER=2.0  GHCVER=8.2.2
 
 # Note: the distinction between `before_install` and `install` is not
 #       important.

src/Protolude/Error.hs

@@ -3,6 +3,9 @@
 {-# LANGUAGE PolyKinds #-}
 {-# LANGUAGE ImplicitParams #-}
 {-# LANGUAGE ExistentialQuantification #-}
+#if ( __GLASGOW_HASKELL__ >= 800 )
+{-# LANGUAGE TypeInType #-}
+#endif
 
 #if MIN_VERSION_base(4,9,0)
 {-# OPTIONS_GHC -fno-warn-redundant-constraints #-}