private static CppCompositeType createIX1_struct(DataTypeManager dtm,
			CppCompositeType GX1_struct, CppCompositeType HX1_struct, CppCompositeType C_struct)
			throws PdbException {
		String name = "IX1";
		CppCompositeType struct = createStruct(dtm, name, 32);
		struct.addDirectBaseClass(GX1_struct.getComposite(), GX1_struct, publicDirectAttributes, 0);
		struct.addDirectBaseClass(HX1_struct.getComposite(), HX1_struct, publicDirectAttributes, 8);
		struct.addIndirectVirtualBaseClass(C_struct.getComposite(), C_struct,
			publicDirectAttributes, 0, ClassUtils.VXPTR_TYPE, 1);
		struct.addMember("ix11", intT, false, publicDirectAttributes, 16, null);
		return struct;
	}
Class to create the egray8 64-bit program and mock PDB.
<p>
This class implementation is not complete... many more classes' expected results need
codified
Ghidra/Features/PDB/src/test/java/ghidra/app/util/pdb/Egray864ProgramCreator.java