GitLab

Self-referencing structs and unions should not cause the backcompat
checker to fail. This fixes it.

Bug: None
Change-Id: Ia852c0aa68c63ff7f8c613b830f7a259489fe41b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2425304Reviewed-by: James Cook <jamescook@chromium.org>
Commit-Queue: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#809659}