ghc/compiler/tests/typecheck/should_fail/tcfail004.stderr

   1
   2 tcfail004.hs:3: Couldn't match the type
   3                     `PrelTup.(,)' against `PrelTup.(,,) t{-aXz-}'
   4     Expected: `(t{-aXt-}, t{-aXw-})'
   5     Inferred: `(t{-aXz-}, t{-aXC-}, t{-aXF-})'
   6     In a pattern binding:
   7         (`f', `g')
   8             =   `(1, 2, 3)'
   9
  10
  11 Compilation had errors