protected CallGraphEdge createEdge(CallGraphNode source, CallGraphNode target) { return new CallGraphEdge(source, target);
public CallGraphEdge createEdge(CallGraphNode source, CallGraphNode target, CallSite callSite) { CallGraphEdge edge = createEdge(source, target); edge.setCallSite(callSite); return edge;
	protected CallGraphEdge createEdge(CallGraphNode source, CallGraphNode target) {		return new CallGraphEdge(source, target);	}