Enable symbolic traceback on exception

[jquorning]

No description provided.

[AJ-Ianozi]

I'm ignorant on debugging and tracebacks, but should this usually be done when not in release mode? (how helpful is it without -g?)

[jquorning]

The symbolic backtrace for release lacks line numbers but at least has the subprograms.
Yass suggests to report back with error.log but it is quite useless without backtrace.

I would be nice to avoid having a lot of debug info in the executable. This may be why just the addresses and load address is provided as standard on mac. The you put this info into atos - If I remember correctly - and this emits the backtrace.