Needs one suppression due to Clang warning about multiple vtables
in a cpp file.

Bug: skia:7647
Change-Id: If7f318b7539d23f783b0ef6d6478ce24a0b72bc7
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2404746
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>