DebugBreak allows you to put break points into generated code. When
executed in gdb, the execution will stop in the generated code at the
break point.

R=clemensb@chromium.org

Change-Id: I5607d7ec45d4910412c7adff5ae9bea2c9498909
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2002536
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65802}