libadalang/extensions/analysis/unit/destroy

## vim: filetype=makoada

for Cur in Unit.Nodes_Nameres.Iterate loop
   declare
      V : Resolution_Val renames Unit.Nodes_Nameres.Reference (Cur);
   begin
      Free_Memoized_Error (V.Exc_Id, V.Exc_Msg);
      Dec_Ref (V.Return_Value);
   end;
end loop;