-Implement necessary casts due to TVirtualStreamerinfo.

cont/src/TContainerConverters.cxx

io/src/TContainerConverters.cxx

io/src/TStreamerInfoReadBuffer.cxx

io/src/TStreamerInfoWriteBuffer.cxx

meta/inc/TStreamerElement.h

meta/src/TStreamerElement.cxx

meta/src/TStreamerInfoReadBuffer.cxx

meta/src/TStreamerInfoWriteBuffer.cxx

sql/inc/TSQLFile.h

sql/src/TSQLFile.cxx

tree/src/TBranch.cxx

tree/src/TBranchBrowsable.cxx

tree/src/TBranchElement.cxx

tree/src/TTree.cxx

tree/src/TTreeCloner.cxx

treeplayer/inc/TBranchProxyClassDescriptor.h

treeplayer/src/TBranchProxyClassDescriptor.cxx

treeplayer/src/TFormLeafInfo.cxx

treeplayer/src/TTreeFormula.cxx

treeplayer/src/TTreeProxyGenerator.cxx