Adds a micro benchmark in js-perf-test to measure the performance of
compare bytecode handlers.

Bug:v8:4280

Change-Id: Ic86d670f8f09147076a22cfeff2e1ec052afe20c
Reviewed-on: https://chromium-review.googlesource.com/485522Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44843}