The trampoline should never inline the actual iteration method and
always use a full call. As a result, there can be no interesting data
in the redzone.

This allows simplifying as the existence and size of a red zone is platform
dependent.

Bug: chromium:1056170
Change-Id: I38d686b0e60fdcc383c40a45e7a81ec0e91f4d62
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2132788Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66955}