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