From 9ce9ea5071af5c7a5b6fcef11ac6e19c14480901 Mon Sep 17 00:00:00 2001
From: HaskellMouse <rinat.stryungis@serokell.io>
Date: Wed, 27 Apr 2022 06:19:45 +0300
Subject: Deprecate TypeInType extension

This commit fixes #20312
It deprecates "TypeInType" extension
according to the following proposal:
https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0083-no-type-in-type.rst

It has been already implemented.

The migration strategy:
 1. Disable TypeInType
 2. Enable both DataKinds and PolyKinds extensions

Metric Decrease:
    T16875
---
 libraries/base/GHC/Exception.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libraries/base/GHC')

diff --git a/libraries/base/GHC/Exception.hs b/libraries/base/GHC/Exception.hs
index abaa308aec..1a3b039416 100644
--- a/libraries/base/GHC/Exception.hs
+++ b/libraries/base/GHC/Exception.hs
@@ -5,7 +5,7 @@
            , RecordWildCards
            , PatternSynonyms
   #-}
-{-# LANGUAGE TypeInType #-}
+{-# LANGUAGE DataKinds, PolyKinds #-}
 {-# OPTIONS_HADDOCK not-home #-}
 
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