Add ADB crash debugging for run-tests.

We see very flaky crashes on the build bots from adb commands.

Wrap the adb commands in such a way that allows us to distinguish
whether it is adb itself crashing or the target command crashing.

Test: ./art/test.py -r --target --optimizing --64
Change-Id: Ic4d3482f3d2d0ff5412df6ab51b2cc0b6d54e45a