(a ? b : c) ![tokenKey];
(a || b) ![tokenKey];
(void 0)!;

async function f() {
    return (await foo())!;
}

function* g() {
    return (yield * foo())!;
}

const a = (b()!)(); // parens aren't necessary
const b = c!();

// parens are necessary if the expression result is called as a constructor
const c1 = new (d()!)();
const c2 = new (d()!);
const c3 = new (d()!.e)();
new (x()``.y!)();
new (x()``!.y)();
new (x()!``.y)();
new (x!()``.y)();
