is(x = module) vs. __traits(isModule, x)

[Walter Bright]

On 10/8/2020 2:38 AM, Jacob Carlborg wrote:
> Oh, god, no. We already have way too many special magic members. We don't need 
> any more. `__traits` is great because it has it's own namespace. It occupies 
> just one keyword and you can add all the identifiers in the world without the 
> risk of breaking existing code.

Exactly right. It's also there to avoid the need for inventing special syntax 
for all the weird things it does.