Using the export keyword between a decorator and a class is not allowed

報告で指定されている react-styleguidist のバージョンと、報告された4つの JSX パス（src/components/Markdown/index.jsx、Search/index.jsx、Snackbar/index.jsx、SpeedDial/index.jsx）を使って警告を再現します。デコレーターとエクスポート周辺のパーサーの動作を比較します。ドキュメント生成中にこれらのファイルから報告された構文警告が発生しなくなれば完了です。

I'm attempting to migrate react-styleguidist from v8 -> v9 and noticed that react-styleguidist@8.0.5 and beyond starts showing errors in the terminal:

You can now view your style guide in the browser:

  Local:            http://localhost:6060/
  On your network:  http://10.242.26.49:6060/

Warning: Cannot parse src/components/Markdown/index.jsx: SyntaxError: Using the export keyword between a decorator and a class is not allowed. Please use `export @dec class` instead. (28:0)

It usually means that react-docgen does not understand your source code, try to file an issue here:
https://github.com/reactjs/react-docgen/issues

Warning: Cannot parse src/components/Search/index.jsx: SyntaxError: Using the export keyword between a decorator and a class is not allowed. Please use `export @dec class` instead. (59:0)

It usually means that react-docgen does not understand your source code, try to file an issue here:
https://github.com/reactjs/react-docgen/issues

Warning: Cannot parse src/components/Snackbar/index.jsx: SyntaxError: Using the export keyword between a decorator and a class is not allowed. Please use `export @dec class` instead. (53:0)

It usually means that react-docgen does not understand your source code, try to file an issue here:
https://github.com/reactjs/react-docgen/issues

Warning: Cannot parse src/components/SpeedDial/index.jsx: SyntaxError: Using the export keyword between a decorator and a class is not allowed. Please use `export @dec class` instead. (18:0)

It usually means that react-docgen does not understand your source code, try to file an issue here:
https://github.com/reactjs/react-docgen/issues

This warning does not show on react-styleguidist@8.04. I think https://github.com/styleguidist/react-styleguidist/pull/1200 may be the culprit. Would this be a react-docgen issue? /cc @danez