From: simonpj@microsoft.com <unknown>
Date: Wed, 20 Jan 2010 09:42:21 +0000 (+0000)
Subject: Fix Trac #3823, plus warning police in TcRnDriver
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;ds=sidebyside;h=dfa43eb4dd7cd898b4a0f55f51d1eace71f22762;hp=dfa43eb4dd7cd898b4a0f55f51d1eace71f22762;p=ghc-hetmet.git

Fix Trac #3823, plus warning police in TcRnDriver

The immediate reason for this patch is to fix #3823. This was
rather easy: all the work was being done but I was returning
type_env2 rather than type_env3.

An unused-veriable warning would have shown this up, so I fixed all
the other warnings in TcRnDriver.  Doing so showed up at least two
genuine lurking bugs.  Hurrah.
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