Failed await should fall through to catch statement.

[bolinfest]

I'm not sure if this is expected to work today, but I would hope that I could do:

async function f() {
  return Promise.reject(new Error('oh no!'));
}

async function main() {
  try {
    await f();
  } catch (e) {
    // This line should print out the Error from f().
    console.error('Error: %s', e);
  }
}

main();

Ultimately, this should work with multiple await statements:

async function main() {
  try {
    var a = await b();
    var c = await d(a);
    var e = await f(c);
    // etc.
  } catch (e) {
    // This line should print out the Error from f().
    console.error('Error: %s', e);
  }
}

I put together some sample code that chains a handful of transforms together. I would really like to use async/await along with jsx and harmony features.

[bolinfest]

I also hope that, once combined with jstransform, the following works:

var [first, second] = await Promise.all([getFirstPromise(), getSecondPromise()]);

though it would be even more slick if we could remove some of that syntax.

[benjamn]

@bolinfest thank you very much for drawing my attention to this bug! As you can see from the fix (20f0518), the mistake was simple but the consequences were profound.

[bolinfest]

Gotta love a two line fix! I don't know how hard it is to set up, but I'd humbly request a unit test for that one.

[benjamn]

@bolinfest 40384de ;)