This CL adds two sets of benchmarks. The first measures the effort
needed to walk the stack and create the data structure stored in
Error.stack, while the second measures the serialization of that
Error.stack data structure into a string.

R=petermarshall@chromium.org, yangguo@chromium.org

Bug: v8:8742
Change-Id: Ie7b86da5621cb186a036a3ec99692ec4d2048fba
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1505614
Commit-Queue: Simon Zünd <szuend@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60176}