protected 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));
	}
Generate address from parsed string within specified program.
@param program target program
@param addrString address string (w/ optional space name) to be parsed
@return addressor null if parse fails
Ghidra/Features/Base/src/test.slow/java/ghidra/program/util/AbstractProgramDiffTest.java