private static String getExpectedStructO() {
		String expected =
		//@formatter:off
			"""
			/ONS::O
			pack()
			Structure ONS::O {
			   0   ONS::O   96      "Self Base"
			   96   A1NS::A1   16      "Virtual Base"
			   112   A2NS::A2   16      "Virtual Base"
			   128   B1NS::B1   16      "Virtual Base"
			   144   B2NS::B2   16      "Virtual Base"
			   160   BNS::B   24      "Virtual Base"
			   184   O3NS::O3   56      "Virtual Base"
			   240   O4NS::O4   32      "Virtual Base"
			}
			Length: 272 Alignment: 8
			/A1NS::A1
			pack()
			Structure A1NS::A1 {
			   0   pointer   8   {vfptr}   ""
			   8   int   4   a1   ""
			}
			Length: 16 Alignment: 8
			/A2NS::A2
			pack()
			Structure A2NS::A2 {
			   0   pointer   8   {vfptr}   ""
			   8   int   4   a2   ""
			}
			Length: 16 Alignment: 8
			/ANS::A/!internal/ANS::A
			pack()
			Structure ANS::A {
			   0   pointer   8   {vfptr}   ""
			   8   pointer   8   {vbptr}   ""
			   16   int   4   a   ""
			}
			Length: 24 Alignment: 8
			/B1NS::B1
			pack()
			Structure B1NS::B1 {
			   0   pointer   8   {vfptr}   ""
			   8   int   4   b1   ""
			}
			Length: 16 Alignment: 8
			/B2NS::B2
			pack()
			Structure B2NS::B2 {
			   0   pointer   8   {vfptr}   ""
			   8   int   4   b2   ""
			}
			Length: 16 Alignment: 8
			/BNS::B/!internal/BNS::B
			pack()
			Structure BNS::B {
			   0   pointer   8   {vfptr}   ""
			   8   pointer   8   {vbptr}   ""
			   16   int   4   b   ""
			}
			Length: 24 Alignment: 8
			/O1NS::O1/!internal/O1NS::O1
			pack()
			Structure O1NS::O1 {
			   0   ANS::A   24      "Base"
			   24   BNS::B   24      "Base"
			   48   int   4   o1   ""
			}
			Length: 56 Alignment: 8
			/O2NS::O2/!internal/O2NS::O2
			pack()
			Structure O2NS::O2 {
			   0   ANS::A   24      "Base"
			   24   int   4   o2   ""
			}
			Length: 32 Alignment: 8
			/O3NS::O3/!internal/O3NS::O3
			pack()
			Structure O3NS::O3 {
			   0   ANS::A   24      "Base"
			   24   BNS::B   24      "Base"
			   48   int   4   o3   ""
			}
			Length: 56 Alignment: 8
			/O4NS::O4/!internal/O4NS::O4
			pack()
			Structure O4NS::O4 {
			   0   ANS::A   24      "Base"
			   24   int   4   o4   ""
			}
			Length: 32 Alignment: 8
			/ONS::O/!internal/ONS::O
			pack()
			Structure ONS::O {
			   0   O1NS::O1   56      "Base"
			   56   O2NS::O2   32      "Base"
			   88   int   4   o   ""
			}
			Length: 96 Alignment: 8""";
		//@formatter:on
		return expected;
	}
Class to create the cvf4 64-bit program and mock PDB.
<p>
This class implementation is not complete... expected results need codified
Ghidra/Features/PDB/src/test/java/ghidra/app/util/pdb/Cfb464ProgramCreator.java