Move the try_start dump property to 'flags' am: 1dd292be0d am: e8bfc700b7 am: ef0c9e1c36

Original change: https://android-review.googlesource.com/c/platform/art/+/2320053

Change-Id: Ifd2b5247a9d9f805e2517db870ee136261d5cb17
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>