pub const keepinvariant: fn(*const crate::records::global_state::global_State) -> bool = |g| unsafe {
let gcstate = (*g).gcstate as i32;
gcstate == crate::macros::gc_spropagate::GCSpropagate
|| gcstate == crate::macros::gc_spropagateagain::GCSpropagateagain
|| gcstate == crate::macros::gc_satomic::GCSatomic
};