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Remove all derivations of Typeable
Typeable has been automatically derived for every type since GHC 7.10,
so remove these obsolete derivations. This also allows us to get rid of
the `DeriveDataTypeable` pragma quite naturally.
Related: https://github.com/xmonad/xmonad/pull/299 (xmonad/xmonad@9e5b16ed8a)
Related: bd5b969d9b
Fixes: https://github.com/xmonad/xmonad-contrib/issues/548
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@@ -1,5 +1,3 @@
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{-# LANGUAGE DeriveDataTypeable #-}
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-----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Actions.SwapPromote
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@@ -115,7 +113,7 @@ import Control.Arrow
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-- Without history, the list is empty.
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newtype MasterHistory = MasterHistory
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{ getMasterHistory :: M.Map WorkspaceId [Window]
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} deriving (Read,Show,Typeable)
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} deriving (Read,Show)
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instance ExtensionClass MasterHistory where
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initialValue = MasterHistory M.empty
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