Merge "Revert^3 "ART: Reference.getReferent intrinsic for x86 and x86_64"" am: 0a50965275 am: 690b07f42e am: 0e09f99a86
am: 8ec171c722

Change-Id: Ia2ba56da2b9eee2d12a4057632f440fdc736d805