To sync with https://github.com/tc39/proposal-intl-displaynames/pull/63

Bug: v8:10069
Change-Id: I64921c348a69ca7b265d498cac9e7da9f3e3f755
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1975038Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65530}