Fix Trac #2701: make deriving check better for unlifted args
authorsimonpj@microsoft.com <unknown>
Sat, 25 Oct 2008 17:12:11 +0000 (17:12 +0000)
committersimonpj@microsoft.com <unknown>
Sat, 25 Oct 2008 17:12:11 +0000 (17:12 +0000)
Getting the automatic deriving mechanism to work really smoothly
is surprisingly hard.  I keep finding myself in TcDeriv!

Anyway, this is a nice clean fix to Trac #2701.


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