Tidy up deriving error messages
authorsimonpj@microsoft.com <unknown>
Mon, 7 Dec 2009 13:08:50 +0000 (13:08 +0000)
committersimonpj@microsoft.com <unknown>
Mon, 7 Dec 2009 13:08:50 +0000 (13:08 +0000)
commit895eccb09f195beefeba9d3c59d7dfa557c6f7d1
treec15a5f4907a6f87f687c020a6a48e7453b9c4a4f
parent0f3dd21e3e1d3ce8038e6dd85834decbe4ee3dca
Tidy up deriving error messages

I did this in response to a suggestion in Trac #3702
compiler/typecheck/TcDeriv.lhs