https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114171
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- [apinski@xeond2 libstdc++-v3]$ c++filt --format dlang _D4core8lifetime__T12_d_newclassTTC1a14BreakStatementZQBjFNaNbNeZQBf core.lifetime._d_newclassT!(a.BreakStatement)._d_newclassT()