The function returns true if the function does not do anything like:
() => {}.

Change-Id: I049d7956c443b5d2bb8017a48547376f13acd0a2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3778969Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Yoshisato Yanagisawa <yyanagisawa@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82093}