protected DataTypeManager createBigEndianDataTypeManager() {
		DataOrganizationImpl dataOrg = DataOrganizationImpl.getDefaultOrganization(null);
		dataOrg.setBigEndian(true);
		return new StandAloneDataTypeManager("BEdtm", dataOrg);
	}
Test that a union can contain a pointer in it to a typedef of the same union.
Ghidra/Features/Base/src/test/java/ghidra/program/model/data/UnionDataTypeTest.java