https://issues.dlang.org/show_bug.cgi?id=13972
--- Comment #6 from weaselcat <r9shacklef...@gmail.com> --- RefCounted almost done. https://github.com/D-Programming-Language/phobos/pull/3171 made it possible to make @nogc refcounted types, but destroy still doesn't infer attributes as per https://github.com/D-Programming-Language/druntime/pull/1181 --
