[Bug ada/62205] GNAT does not accept class types for Default_Iterator

[porton at narod dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62205

--- Comment #1 from Victor Porton <porton at narod dot ru> ---
It does not work with GNAT GPL 2014.

$ gnat compile -gnatc -gnat12 test.ads 
gcc -c -gnatc -gnat12 test.ads
test.ads:19:28: Default Iterator must be a primitive of "Descriptions_List"
gnatmake: "test.ads" compilation error