public static ICompilationUnit toOriginal(ICompilationUnit cu) {
public static IMember toOriginal(IMember member) {
	public static ICompilationUnit toOriginal(ICompilationUnit cu) {		if (PRIMARY_ONLY) {			testCompilationUnitOwner("toOriginal", cu); //$NON-NLS-1$		}		// To stay compatible with old version returned null		// if cu is null		if (cu == null)			return cu;		return cu.getPrimary();	}