New validate failures

[Mateusz Kowalczyk]

On 13/03/14 20:13, Johan Tibell wrote:
> Hi,
> 
> Did something change in pretty-printing recently? I saw these new validate
> failures today:
> 
> Unexpected failures:
>    ghci.debugger/scripts  break008 [bad stdout] (ghci)
>    ghci.debugger/scripts  break012 [bad stdout] (ghci)
>    ghci.debugger/scripts  break026 [bad stdout] (ghci)
>    ghci.debugger/scripts  hist001 [bad stdout] (ghci)
>    ghci/scripts           T5545 [bad stdout] (ghci)
>    ghci/scripts           ghci008 [bad stdout] (ghci)
>    ghci/scripts           ghci012 [bad stdout] (ghci)
>    ghci/scripts           ghci023 [bad stdout] (ghci)
>    ghci/scripts           ghci025 [bad stdout] (ghci)
>    ghci/scripts           ghci026 [bad stdout] (ghci)
>    ghci/scripts           ghci055 [bad stdout] (ghci)
> 
> Two example stdout changes:
> 
> --- ./T5545.stdout 2014-03-13 09:48:23.000000000 +0100
> +++ ./T5545.run.stdout 2014-03-13 21:11:32.000000000 +0100
> @@ -1,2 +1,2 @@
> -($!) :: (a -> b) -> a -> b -- Defined in 'Prelude'
> +$! :: forall a b. (a -> b) -> a -> b -- Defined in 'Prelude'
>  infixr 0 $!
> *** unexpected failure for T5545(ghci)
> 
> --- ./ghci008.stdout 2014-03-13 09:48:23.000000000 +0100
> +++ ./ghci008.run.stdout 2014-03-13 21:12:20.000000000 +0100
> @@ -32,5 +32,5 @@
>     -- Defined in 'GHC.Float'
>  instance RealFloat Float -- Defined in 'GHC.Float'
>  instance RealFloat Double -- Defined in 'GHC.Float'
> -Data.List.isPrefixOf :: Eq a => [a] -> [a] -> Bool
> +isPrefixOf :: forall a. Eq a -> [a] -> [a] -> Bool
>     -- Defined in 'Data.List'
> *** unexpected failure for ghci008(ghci)
> 
> 
> 
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Perhaps
https://ghc.haskell.org/trac/ghc/changeset/24eea38c70eae90d166de26d71a178fb0c1ffc30/ghc
has something to do with it. AFAIK it's part of
https://ghc.haskell.org/trac/ghc/ticket/8776

-- 
Mateusz K.