These classes are none to not contain any information.

ApplicationKit:
- NSSecureTextField_Class
- NSTextAttachmentCell_Class

Foundation:
- NSCountCommand_Class
- NSDeserializer_Class
- NSExistsCommand_Class
- NSGetCommand_Class
- NSMessagePort_Class
- NSMiddleSpecifier_Class
- NSPropertySpecifier_Class
- NSRandomSpecifier_Class
- NSSerializer_Class
- NSObjCTypeSerializationCallBack_Protocol
- NSURLHandleClient_Protocol

WebKit:
- WebDownload_Class
