Freeing critical sections via atexit in system/alloc and system/io#19062

Merged

Araq merged 7 commits intonim-lang:develfrom

zacharycarter:devel

Oct 29, 2021

Commits on Oct 27, 2021

adding new system module sysexitprocs and including system exit procedures when registering exit handlers defined in userland
zacharycarter
committed
fixing failing tests and adding initialization guard to handle cases where the module's global init logic isn't invoked first as is the case with some gc implementaions
zacharycarter
committed
js backend shouldn't try to invoke actual system exit procs
zacharycarter
committed

Commits on Oct 28, 2021