From: simonpj@microsoft.com <unknown>
Date: Fri, 23 Oct 2009 16:17:35 +0000 (+0000)
Subject: Add restrictVarEnv :: VarEnv a -> VarSet -> VarEnv a
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=55c1f08cf6b8812f60b0c45882442c146bb9e92a;hp=55c1f08cf6b8812f60b0c45882442c146bb9e92a;p=ghc-hetmet.git

Add restrictVarEnv :: VarEnv a -> VarSet -> VarEnv a

I needed it, and then didn't need it, so it's not currently
called, but its generally useful kind of thing.
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