message: Add validation for interface name element types
diff: @@ -580,6 +580,7 @@ bool ValueElement::validate(string* message) const
  }
  if (hasInterfaceName())
  {
  + validateRequire(isA<Parameter>() || isA<Input>(), res, message, "Only parameter and input elements support interface names");
  ConstNodeGraphPtr nodeGraph = getAncestorOfType<NodeGraph>();
  NodeDefPtr nodeDef = nodeGraph ? nodeGraph->getNodeDef() : nullptr;
  if (nodeDef)
  