@Override
		public AddressSet getAddressSet(Function f, Program program) {
			AddressSet addrs = new AddressSet();
			if (f == null) {
				return addrs;
			}
			addrs.add(f.getEntryPoint());
			return addrs;
		}
Compares the function tags in two programs. 

Two sets of tags are considered equal if they contain the name and comment
attributes.
Ghidra/Features/Base/src/main/java/ghidra/program/util/ProgramDiff.java