Pass along the intended atomicity parameter for a getter in a DCHECK.

Bug: chromium:1218072
Change-Id: Ib83c8f548d3de9c944546c74291cd148643e185c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2950242
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75060}