testsuite/tests/typecheck/should_fail/AssocTyDef02.stderr


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AssocTyDef02.hs:6:5: error:
    • Illegal argument ‘[b]’ in:
        ‘type Typ [b] = ...’
        The arguments to ‘Typ’ must all be distinct type variables
    • In the default type instance declaration for ‘Typ’
      In the class declaration for ‘Cls’