This CL adds subtypes (SyncJSDisposableStack and AsyncDisposableStack)
to JSDisposableStack as well as `await using` to the bytecode generator.
Currently async generators are broken and the fix is left as a TODO
in this CL. Also, exception handling (promise rejections) will be
completed in a follow up CL.

Bug: 42203814
Change-Id: I303a380b57fb4ab4662e4f55fb4dc9b14d18cd2a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5569647
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Rezvan Mahdavi Hezaveh <rezvan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#94944}