[Bug] fs.watchFile does not work with a virtual FS

[dalinarkholin]

• I'd be willing to implement a fix (maybe if I can find the time )

Describe the bug

fs.watchFile does not trigger change events when the file path is a virtual one.

this implementation is used within Chokidar when polling(usePolling) is enabled(example: via webpack)

To Reproduce

No repro at the moment.

Per @arcanis

"ideally just a simple Node script using fs.watchFile, so no webpack or anything"

"I suspect the fix will be to override watchFile and/or watch in the VirtualFS
https://github.com/yarnpkg/berry/blob/master/packages/yarnpkg-fslib/sources/VirtualFS.ts"

Additional context

#1209 is related.