Use the Build Event Protocol output to figure out which test.xml to use
Use the Build Event Protocol output to figure out which test.xml to use

Else we sometime have staled XML file that wrongly report some tests
as failed whereas they are non existent.

Change-Id: I368fd2c4a4908f8308237c71df053f68951f9fb7

bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration