The generation of TFJ declarations for non-vararg JavaScript-linkage
builtins was very broken. Now it works as it should: the explicit
parameters correspond to normal JavaScript parameters.

Bug: v8:7793
Change-Id: I9fa0bdd45f8c4b678d4f0436af3e9b53cba69475
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1769317
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63394}