Merge "ART: Print jit memory use only if we have samples"
am: 1704a18ce8

* commit '1704a18ce85cd89488234e8245a22c2aca117b18':
  ART: Print jit memory use only if we have samples

Change-Id: I227a1697a4e451ad60377e4742f73a91396e0d3a