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T8958.hs:1:31: warning:
    -XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language.
TYPE SIGNATURES
  T8958.MkMap :: forall k v. [(k, v)] -> Map k v
TYPE CONSTRUCTORS
  type role Map nominal representational
  newtype (Nominal k, Representational v) => Map k v = MkMap [(k, v)]
  class Nominal a
  type role Representational representational
  class Representational a
COERCION AXIOMS
  axiom T8958.N:Map :: Map k v = [(k, v)] -- Defined at T8958.hs:13:1
INSTANCES
  instance [incoherent] Representational a
    -- Defined at T8958.hs:10:10
  instance [incoherent] Nominal a -- Defined at T8958.hs:7:10
Dependent modules: []
Dependent packages: [base-4.10.0.0, ghc-prim-0.5.0.0,
                     integer-gmp-1.0.0.1]

==================== Typechecker ====================
T8958.$tcMap
  = GHC.Types.TyCon
      16542473435673943392##
      5374201132143305512##
      T8958.$trModule
      (GHC.Types.TrNameS "Map"#)
      0
      krep
krep [InlPrag=[~]]
  = GHC.Types.KindRepFun
      (GHC.Types.KindRepTYPE GHC.Types.LiftedRep)
      (GHC.Types.KindRepFun
         (GHC.Types.KindRepTYPE GHC.Types.LiftedRep)
         (GHC.Types.KindRepTYPE GHC.Types.LiftedRep))
T8958.$tc'MkMap
  = GHC.Types.TyCon
      2942839876828444488##
      3989137838066763457##
      T8958.$trModule
      (GHC.Types.TrNameS "'MkMap"#)
      2
      krep
krep [InlPrag=[~]]
  = GHC.Types.KindRepFun
      (GHC.Types.KindRepTyConApp
         GHC.Types.$tc[]
         ((:) @ GHC.Types.KindRep
            (GHC.Types.KindRepTyConApp
               GHC.Tuple.$tc(,)
               ((:) @ GHC.Types.KindRep
                  (GHC.Types.KindRepVar 0)
                  ((:) @ GHC.Types.KindRep
                     (GHC.Types.KindRepVar 1) [] @ GHC.Types.KindRep)))
            [] @ GHC.Types.KindRep))
      (GHC.Types.KindRepTyConApp
         T8958.$tcMap
         ((:) @ GHC.Types.KindRep
            (GHC.Types.KindRepVar 0)
            ((:) @ GHC.Types.KindRep
               (GHC.Types.KindRepVar 1) [] @ GHC.Types.KindRep)))
T8958.$tcRepresentational
  = GHC.Types.TyCon
      12809567151893673426##
      12159693688248149156##
      T8958.$trModule
      (GHC.Types.TrNameS "Representational"#)
      0
      krep
krep [InlPrag=[~]]
  = GHC.Types.KindRepFun
      (GHC.Types.KindRepTYPE GHC.Types.LiftedRep)
      (GHC.Types.KindRepTyConApp
         GHC.Types.$tcConstraint [] @ GHC.Types.KindRep)
T8958.$tc'C:Representational
  = GHC.Types.TyCon
      2358772282532242424##
      5444038897914446879##
      T8958.$trModule
      (GHC.Types.TrNameS "'C:Representational"#)
      1
      krep
krep [InlPrag=[~]]
  = GHC.Types.KindRepTyConApp
      T8958.$tcRepresentational
      ((:) @ GHC.Types.KindRep
         (GHC.Types.KindRepVar 0) [] @ GHC.Types.KindRep)
T8958.$tcNominal
  = GHC.Types.TyCon
      12224997609886144634##
      9866011944332051160##
      T8958.$trModule
      (GHC.Types.TrNameS "Nominal"#)
      0
      krep
krep [InlPrag=[~]]
  = GHC.Types.KindRepFun
      (GHC.Types.KindRepTYPE GHC.Types.LiftedRep)
      (GHC.Types.KindRepTyConApp
         GHC.Types.$tcConstraint [] @ GHC.Types.KindRep)
T8958.$tc'C:Nominal
  = GHC.Types.TyCon
      10562260635335201742##
      1215478186250709459##
      T8958.$trModule
      (GHC.Types.TrNameS "'C:Nominal"#)
      1
      krep
krep [InlPrag=[~]]
  = GHC.Types.KindRepTyConApp
      T8958.$tcNominal
      ((:) @ GHC.Types.KindRep
         (GHC.Types.KindRepVar 0) [] @ GHC.Types.KindRep)
T8958.$trModule
  = GHC.Types.Module
      (GHC.Types.TrNameS "main"#) (GHC.Types.TrNameS "T8958"#)
AbsBinds [a] []
  {Exports: [T8958.$fRepresentationala <= $dRepresentational
               wrap: <>]
   Exported types: T8958.$fRepresentationala [InlPrag=CONLIKE]
                     :: forall a. Representational a
                   [LclIdX[DFunId],
                    Unf=DFun: \ (@ a) -> T8958.C:Representational TYPE: a]
   Binds: $dRepresentational = T8958.C:Representational @ a
   Evidence: [EvBinds{}]}
AbsBinds [a] []
  {Exports: [T8958.$fNominala <= $dNominal
               wrap: <>]
   Exported types: T8958.$fNominala [InlPrag=CONLIKE]
                     :: forall a. Nominal a
                   [LclIdX[DFunId], Unf=DFun: \ (@ a) -> T8958.C:Nominal TYPE: a]
   Binds: $dNominal = T8958.C:Nominal @ a
   Evidence: [EvBinds{}]}