Also, when --trace-heap-broker-verbose is on, we trace
bytecode-by-bytecode alterations to the environment.

Change-Id: I535a063cefd57f055711fdd7d7473cb63c963c7f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1622851Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61733}