+splitHsAppTys :: LHsType n -> [LHsType n] -> (LHsType n, [LHsType n])
+splitHsAppTys (L _ (HsAppTy f a)) as = splitHsAppTys f (a:as)
+splitHsAppTys f as = (f,as)
+
+mkHsAppTys :: OutputableBndr n => LHsType n -> [LHsType n] -> HsType n
+mkHsAppTys fun_ty [] = pprPanic "mkHsAppTys" (ppr fun_ty)
+mkHsAppTys fun_ty (arg_ty:arg_tys)
+ = foldl mk_app (HsAppTy fun_ty arg_ty) arg_tys
+ where
+ mk_app fun arg = HsAppTy (noLoc fun) arg
+ -- Add noLocs for inner nodes of the application;
+ -- they are never used
+