[Issue 15246] Destructor inheritance doesn't inherit attributes properly

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15246

--- Comment #19 from alexanderheistermann at gmail.com ---
PhotoObject does not solve this issue, as it involved predefined functions
toString, toHash, opCmp, and opEquals.
See this link:
https://github.com/andralex/DIPs/blob/ProtoObject/DIPs/DIPxxxx.md

--