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TYPE SIGNATURES
  bar :: forall t t1. t -> (t -> t1) -> t1
  foo :: forall a. (Show a, Enum a) => a -> String
TYPE CONSTRUCTORS
COERCION AXIOMS
Dependent modules: []
Dependent packages: [base-4.9.0.0, ghc-prim-0.4.0.0,
                     integer-gmp-1.0.0.0]

WarningWildcardInstantiations.hs:5:14: warning:
    Found type wildcard ‘_a’ standing for ‘a’
    Where: ‘a’ is a rigid type variable bound by
               the inferred type of foo :: (Enum a, Show a) => a -> String
               at WarningWildcardInstantiations.hs:6:1
    In the type signature for:
      foo :: (Show _a, _) => _a -> _

WarningWildcardInstantiations.hs:5:18: warning:
    Found hole ‘_’ with inferred constraints: Enum a
    In the type signature for:
      foo :: (Show _a, _) => _a -> _

WarningWildcardInstantiations.hs:5:30: warning:
    Found type wildcard ‘_’ standing for ‘String’
    In the type signature for:
      foo :: (Show _a, _) => _a -> _

WarningWildcardInstantiations.hs:8:8: warning:
    Found type wildcard ‘_’ standing for ‘t’
    Where: ‘t’ is a rigid type variable bound by
               the inferred type of bar :: t -> (t -> t1) -> t1
               at WarningWildcardInstantiations.hs:9:1
    In the type signature for:
      bar :: _ -> _ -> _

WarningWildcardInstantiations.hs:8:13: warning:
    Found type wildcard ‘_’ standing for ‘t -> t1’
    Where: ‘t’ is a rigid type variable bound by
               the inferred type of bar :: t -> (t -> t1) -> t1
               at WarningWildcardInstantiations.hs:9:1
           ‘t1’ is a rigid type variable bound by
                the inferred type of bar :: t -> (t -> t1) -> t1
                at WarningWildcardInstantiations.hs:9:1
    In the type signature for:
      bar :: _ -> _ -> _

WarningWildcardInstantiations.hs:8:18: warning:
    Found type wildcard ‘_’ standing for ‘t1’
    Where: ‘t1’ is a rigid type variable bound by
                the inferred type of bar :: t -> (t -> t1) -> t1
                at WarningWildcardInstantiations.hs:9:1
    In the type signature for:
      bar :: _ -> _ -> _