under gdb: received signal SIG34, Real-time event 34.; received signal SIG35, Real-time event 35

[Adam D Ruppe]

On Tuesday, 14 November 2023 at 21:31:39 UTC, mw wrote:
> handle SIGUSR1 noprint
> handle SIGUSR2 noprint

These are what the GC used to use to stop/start threads.

> received signal SIG34, Real-time event 34.
> received signal SIG35, Real-time event 35.

And this is what it uses now.

druntime just replaced usr1/2 with rt34/35 to lessen the 
likelyhood of conflicts with other libraries.