The number of fields gets huge, and we get a lot of repetitive code. Use
a macro to simplify things.

R=jkummerow@chromium.org

Bug: v8:12425
Change-Id: I5282d03724fb7fe966ac9b281398adabfd339dcd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3667505
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80817}