Hi,
Promise is supposed to be able to use with await, while in the 2020-01-05
and 2020-01-19 build, following code does not work:
```
function resolveAfter2Seconds (x) {
return new Promise(resolve => {
setTimeout(() => {
resolve(x);
}, 2000);
});
}
async function f1 () {
var x = await resolveAfter2Seconds(10);
console.log(x); // 10
}
f1();
```
Run the script, node will wait until the output, while qjs returns
immediately. The code is just the demo from MDN:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/await
I guess this is a regression, since I've made such usage with the 2019-10
release before.
Regards
Yifeng Wang
