From: simonpj@microsoft.com <unknown>
Date: Sat, 25 Oct 2008 17:12:11 +0000 (+0000)
Subject: Fix Trac #2701: make deriving check better for unlifted args
X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=commitdiff_plain;h=6b1a6f305f801a1e2a90c3b513e76e7c2d221499;hp=6b1a6f305f801a1e2a90c3b513e76e7c2d221499

Fix Trac #2701: make deriving check better for unlifted args

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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