This will allow the ANGLE test runner to identify test configs
for tests that use parameterization to break up different test
permutations with the same config. Note that GoogleTest doesn't
allow for anything other than alphanumeric characters or "_" in
test names.

Bug: angleproject:3162
Change-Id: Iee215fbd8c397eef04dce0269da9b58ec568fce7
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2280402Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>