When tracing function compilations, do also trace the function index
and the function body size. This information often helps investigating
bottlenecks in compilation.

R=ahaas@chromium.org

Bug: v8:8916, chromium:950493
Change-Id: Ibabd1b59827b67ac9b0ef3a78f121ab8fb2c4e09
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1622111Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61701}