ghc/tests/typecheck/should_fail/tcfail004.stderr

   1
   2 tcfail004.hs:3: Couldn't match the type
   3                     `PrelTup.(,)' against `PrelTup.(,,) taRU'
   4     Expected: `(taRO, taRR)'
   5     Inferred: `(taRU, taRX, taS0)'
   6     In a pattern binding: `(f, g) = (1, 2, 3)'
   7
   8
   9 Compilation had errors