[Issue 23639] Casting to shared not allowed with -preview=nosharedaccess

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23639

--- Comment #1 from RazvanN <razvan.nitu1305 at gmail.com> ---
This is blocking the templatization of the _d_new_class druntime hook.

--