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+
+T13324_fail1.hs:7:26: error:
+ Extra-constraint wildcard ‘_’ not allowed
+ except as the sole constraint
+ e.g., deriving instance _ => Eq (Foo a)
+ in a deriving declaration
+
+T13324_fail1.hs:8:25: error:
+ Wildcard ‘_’ not allowed
+ in a deriving declaration