For minified files especially, the line number alone isn't enough to
identify an IC site.

Change-Id: I93f54f8fca1002072af0d702c155768fa2a8dbcb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1800566Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63745}