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1. DerivErrBadConExistential :: DataCon -> DeriveInstanceBadConstructor

   ghc-lib-parser	GHC.Tc.Errors.Types

   The given DataCon must be truly polymorphic in the last argument of the data type.

2. DerivErrBadConFunTypes :: DataCon -> DeriveInstanceBadConstructor

   ghc-lib-parser	GHC.Tc.Errors.Types

   The given DataCon must not contain function types

3. DerivErrBadConHasConstraints :: DataCon -> DeriveInstanceBadConstructor

   ghc-lib-parser	GHC.Tc.Errors.Types

   The given DataCon has constraints in its type.

4. DerivErrBadConHasExistentials :: DataCon -> DeriveInstanceBadConstructor

   ghc-lib-parser	GHC.Tc.Errors.Types

   The given DataCon has existentials type vars in its type.

5. DerivErrBadConHasHigherRankType :: DataCon -> DeriveInstanceBadConstructor

   ghc-lib-parser	GHC.Tc.Errors.Types

   The given DataCon has a higher-rank type.

6. DerivErrBadConIsGADT :: DataCon -> DeriveInstanceBadConstructor

   ghc-lib-parser	GHC.Tc.Errors.Types

   The given DataCon is a GADT so we cannot directly derive an istance for it.

7. DerivErrBadConWrongArg :: DataCon -> DeriveInstanceBadConstructor

   ghc-lib-parser	GHC.Tc.Errors.Types

   The given DataCon must use the type variable only as the last argument of a data type

8. DerivErrBadConstructor :: !Maybe HasWildcard -> [DeriveInstanceBadConstructor] -> DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   We couldn't derive an instance for a particular data constructor for a variety of reasons.

9. DerivErrBootFileFound :: DeriveInstanceErrReason

   ghc-lib-parser	GHC.Tc.Errors.Types

   No documentation available.

10. DerivErrCannotEtaReduceEnough :: Bool -> DeriveInstanceErrReason

    ghc-lib-parser	GHC.Tc.Errors.Types

    No documentation available.

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