Antarctica/DumontDUrville has special casing.

Bug: chromium:928068
Change-Id: I8aea2fafc2c14d6fbfee8a95910df7e8d7d1ff37
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1507329Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60108}