Merge "Assert the output file of header-abi-diff" am: 9f8239f8d4

Original change: https://android-review.googlesource.com/c/platform/development/+/2337408

Change-Id: I15feae89241d50e54c7460d3578c9c1f7bace69a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>