Merge "Treat R8 warnings as failures for system_server" am: 1f440e7a am:...

Merge "Treat R8 warnings as failures for system_server" am: 1f440e7a am: df2014cb am: 62fadfaf am: d0829e03

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2209838



Change-Id: Iddc4b108ed4ddb23a0a1d872a0be00ee3caf030b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>