[Bug c++/123134] no warning for unsigned long assigned to pointer

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123134

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
IMO this is bad from a QOI perspective, so I'd rather have it as pedantic error
only (but warning by default is OK I guess).