@Test
	public void testGetBookmarkDifference6() throws Exception {
		// 0x1002318: p1 and p2 have bookmarks with same category and different descriptions.
		programBuilder1.createBookmark("0x1002318", BookmarkType.INFO, "stuff",
			"Something different");
		programBuilder2.createBookmark("0x1002318", BookmarkType.INFO, "stuff", "My bookmark");

		AddressSet checkAddressSet = new AddressSet(addr(0x1002306), addr(0x100232f));
		AddressSet expectedDiffs = new AddressSet(addr(0x1002318), addr(0x100231c));
		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