A minor refactoring to call a static method instead of just creating an
instance in order to do the work.
This also makes it easier to later add methods to process all feedback
before dumping profile information.

R=jkummerow@chromium.org

Bug: v8:13209
Change-Id: I157357753b3a1cff83df426660501c43959937b9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3870468
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82949}