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tests/List.hs: make Semigroup import conditional
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@ -1,3 +1,4 @@
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{-# LANGUAGE CPP #-}
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{-# LANGUAGE DeriveTraversable #-}
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{-# LANGUAGE FlexibleInstances #-}
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{-# LANGUAGE GeneralizedNewtypeDeriving #-}
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@ -17,7 +18,9 @@ import qualified Data.List
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import Data.Maybe (isNothing)
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import Data.Monoid (Endo(..))
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import Data.Proxy
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#if !(MIN_VERSION_base(4,11,0))
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import Data.Semigroup (Semigroup((<>)))
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#endif
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import qualified Data.Sequence as Seq
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import qualified Data.Vector as V
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