[1] has changed the layering between JavaScript and HTML substantially
with regards to queuing promise-related microtasks. This fixes up the
comments and parameter orders so that they match up with the current
spec.

[1]: https://github.com/tc39/ecma262/commit/c59502090e2c250cd7e457b5506b92db6b21d153

Change-Id: I75650f7dc1c0b1d1c2b67aaf19d9791a0391a06d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2106997Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Timothy Gu <timothygu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67130}