missing HexString documentation

[Seb]

On Thursday, 8 February 2018 at 00:24:22 UTC, Walter Bright wrote:
> On 2/7/2018 8:03 AM, Ralph Doncaster wrote:
>> As expected,
>> auto data = cast(ubyte[]) x"deadbeef";
>> works with -betterC, but
>> auto data = cast(ubyte[]) hexString!"deadbeef";
>> does not.
>> 
>
> When I tried it:
>
>   import std.conv;
>   void test() {
>     auto data = cast(ubyte[]) hexString!"deadbeef";
>   }
>
> with:
>
>   dmd -c -betterC test2.d
>
> it compiled without complaint. Are you doing something 
> different? (This is why posting complete examples, not 
> snippets, is better. That way I don't have to fill in the 
> blanks with guesswork.)

https://run.dlang.io/is/TEJDZO and hit "Run".

I also opened a Bugzilla issue, s.t. it doesn't get lost 
https://issues.dlang.org/show_bug.cgi?id=18395