[RFC][gdb] Handle pending ^C after rl_callback_read_char

[Tom de Vries]

On 9/13/22 16:32, Tom de Vries via Gdb-patches wrote:
> Ack, I'll wait a bit for more comments, and then commit.  Then we can 
> refer to current gdb source code when posing the question about readline.

I've committed, and send an email to bug-readline.  I don't see it yet 
in the archives.

Thanks,
- Tom