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