Add new ecmaVersion values and 'latest' to types

[antross]

Aligns types for ecmaVersion with current docs and implementation.

[antross]

Note: I left ecmaVersion as optional in the types for now since it currently generates a warning as opposed to an error.

[marijnh]

Thanks. I've followed up with 646b614 which does make ecmaVersion required (the run-time warning fallback is just there to prevent breaking old code—newly typechecked code should make sure to pass the option.)

[antross]

Thanks @marijnh.

One question on your follow-up commit: should the options param also now be required for parse and related functions to ensure ecmaVersion is provided?

acorn/acorn/dist/acorn.d.ts

Line 40 in 646b614

static parse(this: typeof Parser, input: string, options?: Options): Node

[marijnh]

should the options param also now be required for parse and related functions to ensure ecmaVersion is provided?

Yes, that would make sense actually.

[JLHwung]

@marijnh Can you do a patch release? This issue is blocking webpack 5 to upgrade to acorn 8 because the type lint is failing. webpack/webpack#11552

[marijnh]

I've tagged 8.0.2