public Listing getDestinationListing(VTAssociation association) {
		Program program = getDestinationProgram(association);
		return program.getListing();
	}
Returns true if both the source and destination have the same value such that there is
nothing to apply.
@param markupItem the markup item to check for having the save source and desination values.
@return true if both the source and destination have the same value such that there is
nothing to apply.
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/api/markuptype/VTMarkupType.java