This CL exposes the async stack traces instrumentation on the console
object, behind a --experimental-async-stack-tagging-api flag. It serves
as a prototype that aims to validate whether the debugging experience
can be improved for userland code that uses custom schedulers. The tests
are implemented as Blink web tests in the following CL:
https://chromium-review.googlesource.com/c/chromium/src/+/3226418

Bug: chromium:332624
Change-Id: Ib1ee71de68f7bb9aff5b944812ce681d8711d217
Signed-off-by: Victor Porof <victorporof@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3212506Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77491}