Merge "Test stack buffer size calculation." into main am: a7da00f4f0 am: 785789b830

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3342429

Change-Id: I57264e5a58dc64e02f609bfe082755a07acc6a2c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>