Remove usage of default exts, now "stack ghci" loads all together

servant-foreign/servant-foreign.cabal

@@ -47,22 +47,6 @@ library
   if impl(ghc >= 8.0)
     ghc-options: -Wno-redundant-constraints
   include-dirs: include
-  default-extensions:  ConstraintKinds
-                     , CPP
-                     , DataKinds
-                     , DeriveDataTypeable
-                     , FlexibleContexts
-                     , FlexibleInstances
-                     , GeneralizedNewtypeDeriving
-                     , MultiParamTypeClasses
-                     , OverloadedStrings
-                     , PolyKinds
-                     , ScopedTypeVariables
-                     , TemplateHaskell
-                     , TypeFamilies
-                     , TypeOperators
-                     , UndecidableInstances
-
 
 test-suite spec
   type:              exitcode-stdio-1.0
@@ -78,15 +62,3 @@ test-suite spec
                    , servant
                    , servant-foreign
   default-language:  Haskell2010
-  default-extensions:  ConstraintKinds
-                     , DataKinds
-                     , FlexibleContexts
-                     , FlexibleInstances
-                     , GeneralizedNewtypeDeriving
-                     , MultiParamTypeClasses
-                     , ScopedTypeVariables
-                     , TypeFamilies
-                     , TypeOperators
-                     , UndecidableInstances
-                     , OverloadedStrings
-                     , PolyKinds

servant-foreign/src/Servant/Foreign/Inflections.hs

@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module Servant.Foreign.Inflections
   ( concatCase
   , snakeCase

servant-foreign/src/Servant/Foreign/Internal.hs

@@ -1,4 +1,17 @@
 {-# LANGUAGE CPP #-}
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE MultiParamTypeClasses  #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE PolyKinds #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE TypeOperators #-}
+{-# LANGUAGE UndecidableInstances #-}
 #if !MIN_VERSION_base(4,8,0)
 {-# LANGUAGE NullaryTypeClasses #-}
 #endif

servant-foreign/test/Servant/ForeignSpec.hs

@@ -1,4 +1,15 @@
-{-# LANGUAGE CPP               #-}
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE MultiParamTypeClasses  #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE PolyKinds #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE TypeOperators #-}
 #include "overlapping-compat.h"
 
 module Servant.ForeignSpec where