Merge "Do not look at dead phis during SsaRedundantPhiElimination."
am: b8154f8f36

* commit 'b8154f8f36e2811b2524929a7ef31cb4edab44b8':
  Do not look at dead phis during SsaRedundantPhiElimination.

Change-Id: Id0dcf8e55e11a06c8dd46030554a846c6fe04fb4