@Test
	public void testApplyDataDifference12() throws Exception {

		// 0x01003b3a: p2 has a double.

		programBuilder2.applyDataType("0x1003b3a", new DoubleDataType(), 1);

		programMerge = new ProgramMergeManager(p1, p2);
		assertEquals(new AddressSet(addr(0x01003b3a), addr(0x01003b41)),
			programMerge.getFilteredDifferences());
		mergeCodeUnitDifference(0x01003b3a, 0x01003b41);
		assertEquals(new AddressSet(), programMerge.getFilteredDifferences());
	}
Test that programMerge can apply a conflicting data type difference in
Program1 and Program2.
Ghidra/Features/Base/src/test.slow/java/ghidra/program/util/ProgramMerge3Test.java