This is a reland of commit 89600314

Changes since revert: None, reverted wrong suspect CL

Original change's description:
> [Temporal] Fix Calendar.prototype.fields CSA
>
> Use LoadAndUntagToWord32ObjectField instead of LoadObjectField<Uint32T>
> to load the flag since it is defined as
>  flags: SmiTagged<JSTemporalCalendarFlags>;
>
> Otherwise LoadObjectField<Uint32T> will load the zero part when
> v8_enable_pointer_compression = false
>
> Add unit tests to intl (because the problem only show up on calendar
> other than non iso8601.
>
> Cq-Include-Trybots: luci.v8.try:v8_linux_mipsel_compile_rel,v8_linux_mips64el_compile_rel
>
>
> Bug: v8:12848
> Change-Id: I44b685af99dc9820dfa228447e2b42ae0a82464c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3617388
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#80314}

Bug: v8:12848
Change-Id: I423ea5f0a4a30fc73546df208d24aec84db76eb4
Cq-Include-Trybots: luci.v8.try:v8_linux_mipsel_compile_rel,v8_linux_mips64el_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3620838
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80319}