We want to preserve the current test set without accidentally enabling
new testinig paths with infra changes. Current MSVC is supported as
compile-only.

Bug: angleproject:5114
Change-Id: Iffc4ac3f7dc3845e5d767fdcdbfa9d5fac27f371
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2848646Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>