CallHandleInfos are observed for optimizing API calls in TurboFan.
The place to be careful is on allocation and installation of these
objects in a FunctionTemplate. As long as store order is preserved there,
we can safely directly access the class members.

Bug: v8:7790
Change-Id: I6acb318d01c19d97725c7218e913765c33e0d8b8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2435096
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70236}