Remove one promise tick in yield* (tc39/ecma262#2819) #14877
Merged
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Fixes #1, Fixes #2
This PR implements tc39/ecma262#2819, that reached consensus in the July TC39 meeting. The first commit moves the helpers to their own files without modifying them, so it's easier to only review the other commits (so that you clearly see what changes I made).
I chose to not bump the helpers min versions because this change is fully self-contained in the helpers, and because I didn't add any new parameter to their public API. Users can get this change by just updating their helpers (
@babel/runtime
).