[("tests/examples/Extensions26.hs:1:1-78: Warning: Unused LANGUAGE pragma\nFound:\n  {-# LANGUAGE DeriveFunctor, GeneralizedNewtypeDeriving, StandaloneDeriving #-}\nPerhaps:\n  {-# LANGUAGE StandaloneDeriving #-}\nNote: Extension DeriveFunctor is not used, Extension GeneralizedNewtypeDeriving is not used\n",[ModifyComment {pos = SrcSpan {startLine = 1, startCol = 1, endLine = 1, endCol = 79}, newComment = "{-# LANGUAGE StandaloneDeriving #-}"}])]