Two PR of test262 tests are in
https://github.com/tc39/test262/pull/2139 and
https://github.com/tc39/test262/pull/2134

Bug: v8:7729
Change-Id: Ic416be0cec0fda90ee89c03ba4c6bb3192bf871d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1589633Reviewed-by: Jungshik Shin <jshin@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61144}