private static boolean canLinkDataType(DataType dt) {
		if (dt instanceof AbstractDataType) {
			return false;
		}
		UniversalID universalID = dt.getUniversalID();
		if (universalID == null) {
			return false;
		}
		DataTypeManager dtm = dt.getDataTypeManager();
		if (dtm == null) {
			return false;
		}
		return dtm.findDataTypeForID(dt.getUniversalID()) != null;
	}
Compares this representation and the given representation creates a diff string for both
representations.

@param otherRepresentation the other representation to diff against.
@return An array of two strings: the first is this object's diff value, the second is the
        given objects diff value.
Ghidra/Features/Base/src/main/java/ghidra/app/util/html/HTMLDataTypeRepresentation.java