@Override
		public boolean hasNext() {
			return functionIterator.hasNext();
		}
<CODE>mergeFunctions</CODE> merges function differences within the specified
 address set.

@param addrSet the addresses to be merged.
The addresses in this set should be derived from program1.
@param monitor the task monitor for notifying the user of this merge's
progress.
@throws CancelledException if user cancels via the monitor.
Ghidra/Features/Base/src/main/java/ghidra/program/util/ProgramMerge.java