From: simonpj@microsoft.com <unknown>
Date: Sun, 22 Apr 2007 21:29:11 +0000 (+0000)
Subject: Fix corner case of useless constraint in SPECIALISE pragma
X-Git-Tag: 2007-05-06~131
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=e5ca7e6e5137a2e6081717e5e90ca52a30840f68;hp=e5ca7e6e5137a2e6081717e5e90ca52a30840f68;p=ghc-hetmet.git

Fix corner case of useless constraint in SPECIALISE pragma

	MERGE TO STABLE

This patch fixes Trac #1287.

The problem is described in Note [Unused spec binders] in DsBinds.

At the same time I realised that the error messages in DsBinds.dsPrag
were being given the location of the *binding* not the *pragma*.
So I've fixed that too.
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