[Bug fortran/59720] [OOP] class/extends, multiple generic assignment

[janus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59720

--- Comment #4 from janus at gcc dot gnu.org ---
(In reply to janus from comment #3)
> I will re-check the Fortran standard on this issue ...

The relevant section in the F08 standard is 12.4.3.4.5, which says:

"Two dummy arguments are distinguishable if [...] they are both data objects or
known to be functions, and neither is TKR compatible with the other, ..."

In our case, wher