[Bug]: Position includes index = undefined

[tolmasky]

💻

• Would you like to work on a fix?

How are you using Babel?

Programmatic API (babel.transform, babel.parse)

Input code

After moving everything over to the WeakMap system, I forgot to remove the declaration, so the latest release of Babel includes an undefined index property: https://github.com/babel/babel/blob/main/packages/babel-parser/src/util/location.js#L13

Apologies! Should I just do a commit removing it?

Configuration file name

No response

Configuration

No response

Current and expected behavior

Expected: Shouldn't have an index property
Current: Has an index property.

Environment

• Babel: 7.16.10

Possible solution

No response

Additional context

No response

[babel-bot]

Hey @tolmasky! We really appreciate you taking the time to report an issue. The collaborators on this project attempt to help as many people as possible, but we're a limited number of volunteers, so it's possible this won't be addressed swiftly.

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[nicolo-ribaudo]

This has now been fully exposed: #14174