Merge "Info the am instrumentation if test process attach failed." into tm-dev...

Merge "Info the am instrumentation if test process attach failed." into tm-dev am: 91fa7a8d am: a0d66f4d am: 6bcc9149

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18111564



Change-Id: I0f6a1c2bf7cf485c93fce76d0fa7dbc732b47dd4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>