xml → io Relation

File in io/xml	Includes file in io/io
src / TBufferXML.cxx	inc / TStreamerInfo.h
inc / TBufferXML.h	inc / TBufferText.h
inc / TKeyXML.h	inc / TKey.h
src / TXMLFile.cxx	inc / TStreamerInfo.h
inc / TXMLFile.h	inc / TFile.h