On Saturday, 10 October 2020 at 00:13:15 UTC, Walter Bright wrote: > On 10/8/2020 7:04 AM, Steven Schveighoffer wrote: >> It's literally special cased in the code: >> >> https://github.com/dlang/dmd/blob/013eccaf113e6f23784c615d3ec66434c3629197/src/dmd/expressionsem.d#L5418 > > Good point. Remove the `is` version. I agree.