In https://github.com/microsoft/vscode/blob/7b4fd0b65bc0ab6b919cacd833db312e9c05b85f/src/vs/workbench/services/search/common/localFileSearchWorkerTypes.ts I see FileSystemDirectoryHandle is used a few times.
I believe this type comes from the dom, although we pull it in from types/wicg-file-system-access. However the newest TS nightlies actually move it into lib.dom.d.ts. This causes an hygiene error because a file in common now references something from the dom
@JacksonKearl Can you please investigate moving this type out of common so we can update our TS version