See
https://github.com/WebAssembly/bulk-memory-operations/blob/master/proposals/bulk-memory-operations/Overview.md#element-segments.

Together with the changes in https://crbug.com/v8/10810, we can get
these tests pasing now.

Bug: v8:10810
Change-Id: Ib445e9c57f7f7e5e63c9a3b3c192323062204aa1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2477493Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70582}