Merge "Add a test for b builds with --" am: 26737b6b

Original change: https://android-review.googlesource.com/c/platform/build/+/2504375



Change-Id: I20c3b22f53a21049be326b1295ec7d17b13e2018
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>