Merge "ART: Naive NullCheck elimination in InstructionBuilder" am: 4f4a6c47 am: 8eb48f7f am: 5f55acfb am: efa2becf * commit 'efa2becf': ART: Naive NullCheck elimination in InstructionBuilder Change-Id: If8dff42a24b0ac7abb356c416ac9ffc4c3ecd612