From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 10 Mar 2021 11:01:12 +0000 (+0200)
Subject: Rewrite UnusedVariableRemover
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=d2303923980a08cf6e429a9ce7359d3683c79251;hp=d2303923980a08cf6e429a9ce7359d3683c79251;p=libs%2Fgl.git

Rewrite UnusedVariableRemover

The old implementation was getting too complex with its multitude of
flags.  The new one is based on the idea of reaching definition analysis
and is much more straightforward.
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