[RFA] Implement show | set can-call-inferior-functions [on|off]

[Pedro Alves]

On 4/25/19 2:15 PM, Tom Tromey wrote:

> An error definitely seems like the correct thing to do here.  Other
> choices will give silently mysterious behavior.
> 
> A convenience variable is fine, too, though I suspect it will be little
> used.  I wouldn't require it for this patch to go in.

Agreed.  You could argue that it'd be better to instead come up with
a facility for CLI to inspect the value of any set/show option, though.
But you can already do that with Python's gdb.parameter, so I
guess it may not be that pressing to have a pure CLI mechanism.

Thanks,
Pedro Alves