Make the instrumentation test better

1. The failure is determined using the same regular expression that we
use in tradefed.

2. When the instrumentation fails, the output is directly printed to the
console.

Bug: 162211592
Test: run `atest aidl_integration_test` after injecting an intentional
error. The failure is detected and the failed method (along with stack
track) is printed.

Change-Id: I1e0ae0a97d4f0b7fba310d8da1f3a2e1292cf194
1 file changed