From: simonpj@microsoft.com <unknown>
Date: Wed, 16 Dec 2009 08:50:33 +0000 (+0000)
Subject: Refactor to combine two eqExpr functions
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=b44b34500edbb94194d4fd6ff2acfac0b5ce7a16;hp=b44b34500edbb94194d4fd6ff2acfac0b5ce7a16;p=ghc-hetmet.git

Refactor to combine two eqExpr functions

I'd forgotten that Rules.lhs already has an eqExpr function.  This
patch combines Rules.eqExpr with the (recent) CoreUtils.eqExpr.

I also did a little refactoring by defining CoreSyn.expandUnfolding_maybe
(see Note [Expanding variables] in Rules.lhs), and using it in
     a) CoreUnfold.exprIsConApp_maybe
     b) Rule matching
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