When a string is in a local or on the value stack at a breakpoint,
DevTools should be able to show its value.

Bug: v8:12868
Change-Id: I79014d74c8ef7b212469382bdedca85568b3bcc7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834038
Commit-Queue: Philip Pfaffe <pfaffe@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Philip Pfaffe <pfaffe@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82542}