testsuite/tests/deriving/should_fail/drvfail002.stderr


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drvfail002.hs:19:23:
    No instance for (X T c)
      arising from the first field of ‘S’ (type ‘T’)
    Possible fix:
      use a standalone 'deriving instance' declaration,
        so you can specify the instance context yourself
    When deriving the instance for (Show S)