Suggestion: Config files authored in JS should automatically have intellisense support

Some libraries (e.g. Babel, Webpack, ESLint) use JS files for their config files.

We don't automatically provide IntelliSense support for these - however, the existing definitions (at least for Babel and Webpack) do provide types that describe the module shape of the files, so they can be manually set up today with a JSDoc comment.

It may be possible to provide a mechanism for associating these config files with their @types packages, and allowing those packages to specify that a given type expresses the module shape of the config file.

Courtesy of @uniqueiniquity

First suggested here: https://developercommunity.visualstudio.com/content/idea/385119/better-webpack-support.html

issue で説明されている手動の JSDoc セットアップと、@types の Babel および Webpack の定義が config モジュールの形状をどのように表現しているかを確認してください。JavaScript の config ファイル用の関連付けメカニズムを定義して実装し、JSDoc コメントなしで IntelliSense が提供されることを検証してください。