Add interfaces used by rollup

[guybedford]

This adds missing interfaces used by Rollup in the progress of rollup/rollup#1806.

[guybedford]

I've also updated the source map interface types here to make them compatible with the typings from the source-map project.

I added the version: string there because this is necessary for the types to be compatible. It may be worth including this in the code too, but isn't strictly necessary.

[guybedford]

Subtle ping

[alangpierce]

Thanks! (And sorry for the delay.)

One minor thing that I think could be improved, although I might be misreading and don't feel too strongly.

[alangpierce]

It looks to me like this could also be ExclusionRange | Array<ExclusionRange>, same as elsewhere. (Sneakily, clone uses indentExclusionRanges.slice(), which works with either a single range or an array of ranges.) Could you use the more general type here? (I may also be misreading it, but it looks like MagicString.indent handles either case.)

[guybedford]

Thanks @alangpierce for taking a look. I've updated that line - let me know how that seems.

[alangpierce]

Thanks!

[guybedford]

Much appreciated! Any chance of an npm publish soon?

[alangpierce]

Oops, of course. This is my first time handling a PR in this repo since getting collaborator access, but looks like I have npm access as well, so I should be able to do a release.

[alangpierce]

Done! Published as v0.22.5.

[guybedford]

Great, thank you!