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[project @ 1999-11-12 12:51:20 by simonpj]
[ghc-hetmet.git] / ghc / tests / typecheck / should_fail / tcfail086.stderr
1
2 tcfail086.hs:4:
3     Can't derive any instances for type Ex
4     because it has existentially-quantified constructor(s)
5
6 Compilation had errors
7
Glasgow Haskell Compiler with heterogeneous metaprogramming (generalized arrows and modal types)