Improve error message for deriving
authorsimonpj@microsoft.com <unknown>
Thu, 27 Jul 2006 16:08:32 +0000 (16:08 +0000)
committersimonpj@microsoft.com <unknown>
Thu, 27 Jul 2006 16:08:32 +0000 (16:08 +0000)
commit5f0c4f9aa291cdc291fcdc0c4a30fdce1f91230d
tree2c6cc09ae927051a01a1b14a6be64e5648c96b89
parent9ebd6baeb3955a9f3daa9b57a3d1b8f3b328893d
Improve error message for deriving
compiler/typecheck/TcDeriv.lhs