private boolean isThunkFunction(Address originEntryPoint) {
		Function originFunction = originListing.getFunctionAt(originEntryPoint);
		if (originFunction != null && originFunction.isThunk()) {
			return true;
		}
		return false;
	}
<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