error TS5102: Option 'downlevelIteration' has been removed. Please remove it from your configuration.


!!! error TS5102: Option 'downlevelIteration' has been removed. Please remove it from your configuration.
==== forAwaitPerIterationBindingDownlevel.ts (0 errors) ====
    const sleep = (tm: number) => new Promise(resolve => setTimeout(resolve, tm));
    
    async function* gen() {
        yield 1;
        await sleep(1000);
        yield 2;
    }
    
    const log = console.log;
    
    (async () => {
        for await (const outer of gen()) {
            log(`I'm loop ${outer}`);
            (async () => {
                const inner = outer;
                await sleep(2000);
                if (inner === outer) {
                    log(`I'm loop ${inner} and I know I'm loop ${outer}`);
                } else {
                    log(`I'm loop ${inner}, but I think I'm loop ${outer}`);
                }
            })();
        }
    })();