Is this a bug with __traits(derivedMembers)?

[Steven Schveighoffer]

On 6/12/18 4:19 PM, bauss wrote:
> On Tuesday, 12 June 2018 at 17:24:31 UTC, Basile B. wrote:
>> I don't know if more doc is necessary. The warning is at its right 
>> place IMO.
> 
> If they're reserved the compiler should honestly throw a warning at the 
> very least.
> 
> People should have to read through the docs for warnings.

They are reserved by the language, not necessarily by the compiler. In 
other words, druntime could potentially define double-underscore items 
without violating the spec. Having to require a compiler change for such 
things may be too much.

I didn't know that __traits would ignore them, though, that's pretty 
interesting.

-Steve