- Use raw pointer when setting the SFI in CreateJSFunction
- Use some more factory->xxx_value() handle accessor to avoid handle
  creation

Bug: v8:11525
Change-Id: I5ed62f56cf2e53cc765566c0c129c7851b704813
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3401591Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78763}