Add the array.get and struct.get functions to GenerateOptRef.

Bug: v8:11954
Change-Id: I39b03f909abfd19d89d7d6a76cdef5f0d5219b8e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3197689Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Maria Tîmbur <mtimbur@google.com>
Cr-Commit-Position: refs/heads/main@{#77217}