[Bug fortran/78661] [OOP] Namelist output missing object designator under DTIO

[janus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78661

--- Comment #29 from janus at gcc dot gnu.org ---
AFAICS r246546 should fully fix this PR, so I think it can be closed. Do you
agree, Jerry?