Additional GC wpts for streams
Add tests to verify that when the stream and reader/writer are
unreferenced and only the promise returned by read() or write() is
retained, the promise is still resolved correctly.
Change-Id: I2b38bbda8c0e9fbdba12235a978991adb8e589e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6051620
Commit-Queue: Adam Rice ricea@chromium.org
Reviewed-by: Nidhi Jaju nidhijaju@chromium.org
Cr-Commit-Position: refs/heads/main@{#1390197}