When I put
{-# OPTIONS_GHC -Wall -Werror #-}
in my source file, I don't get compiler (GHC) warnings about redundant
language extensions that I enabled.
It would be nice if the compiler gave warnings about this, since after
refactoring, some language extensions might not be needed anymore, and hence
should be removed since fewer language extensions mean more stable and
portable code no?
What do you think?
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