Proper function/property selection in visual script editing for property.

This one has an ordered list, built-in description, search, etc.

modules/visual_script/visual_script_yield_nodes.cpp

@@ -595,7 +595,7 @@ VisualScriptNodeInstance* VisualScriptYieldSignal::instance(VisualScriptInstance
 }
 VisualScriptYieldSignal::VisualScriptYieldSignal() {
 
-	call_mode=CALL_MODE_INSTANCE;
+	call_mode=CALL_MODE_SELF;
 	base_type="Object";
 
 }