BUG=v8:6949,v8:11074

Change-Id: Ia5a52dcf42559d97eb6fd4a24f4abd3c40226017
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2531792
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71160}