infra: In milo, split console into 'compile' and 'test'. This will provide an easier-to-read summary for wranglers because test failures will be grouped instead of spread out in between compile builders. Bug: angleproject:6496 Change-Id: I45e2f1a868d887de22133684aa0b4821ed4c8f84 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3233900 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>