await check when calling promise type

[pankleks]

This is just suggestion, but it would allow to eliminate quite common mistake (at least in my experience).

async function foo() {
...
}

foo(); // show warning that async is called without await
await foo(); // ok

Obviously it should be warning only as many times this is intentional.
From my experience this kind of mistakes are hard to find and easy to make - that's why I think it would be really useful.

Thanks for consideration.

[jesseschalken]

#10381

[pankleks]

ok, thanks!