for await syntax missing from ES2018 target

[wolfy1339]

TypeScript Version: 3.1.6

Search Terms: for await, es2018, target

Code

export = async function() {
    for await (let x of []) {
        // Do something async here
    }
}

Expected behavior: For the ES2018 target to not use polyfills for the for await syntax.
As per tc39/proposal-async-iteration#131 (comment) it is in ES2018

Actual behavior: Uses polyfills

Playground Link: Can't. The playground targets a version that is unknown and not configurable in order to show the issue

Related Issues:

[wolfy1339]

Another source for you: https://github.com/tc39/proposals/blob/master/finished-proposals.md The proposal is finished and was ratified as part of ES2018

[weswigham]

Ref #20463 which is tracking moving this and rest/spread into a dedicated es2018 transformer and out of the esnext transformer.

[typescript-bot]

This issue has been marked as a duplicate and has seen no activity in the last day. It has been closed for automatic house-keeping purposes.