Merge "Use AndroidLocalUnwinder object." am: 3cf1f484b1

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2595730

Change-Id: I30dcb96c50293ab3b07fbc42d9579f88af428c06
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>