Merge "Create linter to detect demoting test without attaching a bug id." into tm-qpr-dev am: 6bd488e46d am: 2d6dcea4f0

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

Change-Id: Icdde7ae064847c5b8b9764bdb1b171cc10f2fb3b
Signed-off-by: Automerger Merge Worker <[email protected]>