If something goes wrong in ANGLETestSetup, we can skip the test-
specific setup and teardown code to prevent further errors and
crashes. This is necessary for the new test expectation skips.
Bug: angleproject:5951
Change-Id: Ica7b9fed18cec20e7d0e340c39dbbb44f1f8958e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2896173Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
