[Issue 18148] Integral Promotion Fix For 16997 Should Issue Deprecation, Not A Warning

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18148

--- Comment #7 from Jack Stouffer <jack at jackstouffer.com> ---
I've been away from the computer for the whole day, so thanks to everyone who
fixed this.

--