enable non-const reference arguments double& and long&


git-svn-id: https://root.cern.ch/svn/root/trunk@48779 27541ba8-7e3a-0410-8455-c3a389f83636
get rid of _Tp_alloc_type workaround


git-svn-id: https://root.cern.ch/svn/root/trunk@48780 27541ba8-7e3a-0410-8455-c3a389f83636