The Timeout_maps_to_BadInternalError_without_killing_the_engine test's
"Hang" script busy-looped on Environment.TickCount64. Commit cfb9ff1
(Core.Scripting-001) added System.Environment to the script-sandbox
deny-list, so the script now fails sandbox validation instead of
reaching the timeout path. Switch the busy-loop to DateTime.UtcNow
(an allowed type) to preserve the test's intent — a self-terminating
~5s hang that overruns the 30ms script timeout.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
40f06314fb