This adds support for the following instructions:
ref.eq, array.new_with_rtt, array.new_default_with_rtt,
array.get, array.set, array.len.

Bug: v8:7748
Change-Id: I93c4a6676acc8b0ac035dd50762be6a1cc545a57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2593340
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71796}