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The record update def

The import of ‘nubOrd’ from module ‘Data.List.Extra’ is redundant

Defined but not used: ‘mod_cache’

The import of ‘GHC.Driver.Env’ is redundant

Pattern match(es) are non-exhaustive

The import of ‘GHC.Core.TyCo.Tidy’ is redundant

‘hugElts’ is exported by ‘hugElts’ and ‘module Development.IDE.GHC.Compat.Core’

‘tidyOpenType’ is exported by ‘tidyOpenType’ and ‘module Development.IDE.GHC.Compat.Core’

Module ‘GHC.Tc.Utils.Monad’ does not export ‘foldMapM’

The import of ‘Control.Monad’ is redundant