1410822 - Support `await` in the console

Status: RESOLVED DUPLICATE of bug 1410820

(DevTools :: Console, defect)

Description

[Julien Wajsberg [:julienw]]

STR:

Use the following input:

foo = async () => 42
// => function foo()
foo()
// => Promise { <state>: "fulfilled", <value>: 42 }
await foo()
// => SyntaxError: await is only valid in async functions and async generators


The last line should return `42` instead.

Note this is working in Chrome.
Also, in Chrome, the first line returns `async function foo()` which is nice. But this is less of a problem.