Dave Lee fb0653c36b
[lldb] Change po fallback messaging (#175847)
When an object description expression fails, instead of emitting an error, mark it as a
warning instead. Additionally, send the more low level details of the failure to the
`expr` log, and show a more user friendly message:

> `po` was unsuccessful, running `p` instead

rdar://165190497
2026-01-13 16:19:54 -08:00
..