nullfuncref = ref null nofunc
nullexternref = ref null noextern
nullref = ref null none

Bug: v8:7748
Change-Id: Ia54ac52c81bde4315e2d6819cff032cb739216c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3820064
Commit-Queue: Matthias Liedtke <mliedtke@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Matthias Liedtke <mliedtke@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82425}