[Bug c++/109260] -fdump-ada-spec does not support C++ namespaces

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109260

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
https://gcc.gnu.org/onlinedocs/gnat_ugn/Interfacing-with-C_002b_002b-at-the-Class-Level.html#Interfacing-with-C_002b_002b-at-the-Class-Level