@Test
	public void testDataDifference1() throws Exception {

		// 0x01003ac8: same size and named struct with different components.

		Structure struct_a1 = new StructureDataType("struct_a", 0);
		struct_a1.add(new ByteDataType());
		struct_a1.add(new DWordDataType());
		programBuilder1.applyDataType("0x01003ac8", struct_a1, 1);

		//===========

		Structure struct_a2 = new StructureDataType("struct_a", 0);
		struct_a2.add(new CharDataType());
		struct_a2.add(new DWordDataType());
		programBuilder2.applyDataType("0x01003ac8", struct_a2, 1);

		verifyDifference(0x01003ac8, 0x01003acc);
	}
Test that ProgramDiff recognizes that the 2 programs have the same
address spaces.
Ghidra/Features/Base/src/test.slow/java/ghidra/program/util/ProgramDiff4Test.java