This was added in https://chromium.googlesource.com/v8/v8/+/4a709dd65,
but the only check for it that remained in the final patch is inside
a DCHECK. It appears that the approach for checking use of class names
in methods evolved quite a bit over the review of the original patch.

Review URL: https://codereview.chromium.org/1219993002

Cr-Commit-Position: refs/heads/master@{#29428}