src/vs/platform/workspaces/electron-main/workspacesHistoryMainService.ts/WorkspacesHistoryMainService/containsFolder
class WorkspacesHistoryMainService:	private containsFolder(recents: IRecent[], candidate: URI): boolean {
		return !!recents.find(recent => isRecentFolder(recent) && extUriBiasedIgnorePathCase.isEqual(recent.folderUri, candidate));
	}