We do have snapshot decompression trace events, let's also add a
runtime call stats scope for easy comparison.

Bug: chromium:1269494, chromium:1270039
Change-Id: If467cc38f37a0ea9d84e501b4984bf72736c8fa4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3279962
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77898}