Merge "ART: Naive NullCheck elimination in InstructionBuilder" into nyc-dev
am: ac4d518

* commit 'ac4d51883f2a87c31945b79e09762937c4d12331':
  ART: Naive NullCheck elimination in InstructionBuilder

Change-Id: Ie1274c6af9dd54928f31f343fc50479d35672088