Android U Beta 1 GPL
[GWP-ASan][Fuchsia] Use more modern zxtest testing macros am: 9b229fff50

Original change: https://android-review.googlesource.com/c/platform/external/gwp_asan/+/2464592

Change-Id: Ib4311a75baedcb362cf86ffcc88152c2bf8d715b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>