Function wait_for_all_promise

pub(crate) fn wait_for_all_promise(
    cx: JSContext,
    global: &GlobalScope,
    promises: Vec<Rc<Promise>>,
    realm: InRealm<'_>,
    can_gc: CanGc,
) -> Rc<Promise>

https://webidl.spec.whatwg.org/#waiting-for-all-promise