Merge "Create linter to detect demoting test without attaching a bug id." into tm-qpr-dev am: 6bd488e46d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21569720

Change-Id: Ia0985200c321575ec70adfcaf82dd0bbed11d709
Signed-off-by: Automerger Merge Worker <[email protected]>