Exception in downleveled code when concurrently polling an async generator that wraps another generator #4401
Description
An exception is thrown in the generated downleveled code when an async generator is processed concurrently.
async function* inner() { yield 1; yield 2; } async function* outer() { yield* inner(); } const gen = outer(); Promise.all([gen.next(), gen.next()]).then(console.log).catch(console.error);