@Test
	public void testGetBookmarkDifference2() throws Exception {
		// 0x100230b: p1 and p2 have bookmarks with different categories.
		programBuilder1.createBookmark("0x100230b", BookmarkType.INFO, "Cat1", "My bookmark");
		programBuilder2.createBookmark("0x100230b", BookmarkType.INFO, "Stuff", "My bookmark");

		AddressSet checkAddressSet = new AddressSet(addr(0x1002306), addr(0x100232f));
		AddressSet expectedDiffs = new AddressSet(addr(0x100230b), addr(0x100230b));
		checkDiff(checkAddressSet, expectedDiffs, ProgramDiffFilter.BOOKMARK_DIFFS);
	}
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