[infra] Run co19_2 tests on vm-kernel-win-release-x64
[infra] Run co19_2 tests on vm-kernel-win-release-x64

This will provide a baseline to compare co19 tests against on Windows.

Cq-Include-Trybots: luci.dart.try:vm-kernel-win-release-x64-try
Change-Id: I543f9b5d44845e3596312b1b6858697f1fc9dfc2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/167571
Reviewed-by: William Hesse <a821cddceae7dc400f272e3cb1a72f400f9fed6d@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk