.. to improve code readability.

Change-Id: I130542600bcad2a016f3dbbedab594a71cddcb9d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2061549Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66338}