support folding consecutive comment

[dongzhuoer]

It would be nice if we can fold something like

\\ some
\\ very
\\ long
\\ comment

[sean-mcmanus]

VS Code doesn't have an API to enable this to be implemented by extensions yet: microsoft/vscode#37682 . You might want to consider filing an issue with VS Code itself https://github.com/Microsoft/vscode/issues .

[dongzhuoer]

Thank you anyway!

[bobbrow]

There is an API for this now, but we do have another feature tracking code folding. I'll move this over there. #407