Function script::script_runtime::promise_rejection_tracker

unsafe extern "C" fn promise_rejection_tracker(
    cx: *mut JSContext,
    _muted_errors: bool,
    promise: HandleObject,
    state: PromiseRejectionHandlingState,
    _data: *mut c_void
)

https://html.spec.whatwg.org/multipage/#the-hostpromiserejectiontracker-implementation