This also adjusts debug printing of descriptor arrays and adds a check
to the code serializer.

Bug: v8:8617
Tbr: mlippautz@chromium.org
Change-Id: Ic04f01abf9f7ed5a310b9e51a22c04fda108f563
Reviewed-on: https://chromium-review.googlesource.com/c/1387501
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58438}