Drive-by: Improve comment, use << operator where possible
Change-Id: I5d2bff57a3f19a0fbb746136a897bf50e1173775
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2308337Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68966}