private void checkDiff(AddressSet expectedDiffs, int diffType)
			throws ProgramConflictException, CancelledException {
		programDiff = new ProgramDiff(p1, p2);
		programDiff.setFilter(new ProgramDiffFilter(diffType));
		assertEquals(expectedDiffs, programDiff.getDifferences(programDiff.getFilter(), null));
	}
Test that ProgramDiff can determine the code unit differences between
Program1 and Program2 where Data Settings differ.
Ghidra/Features/Base/src/test.slow/java/ghidra/program/util/ProgramDiff1Test.java