Forbid dynamic arrays in boolean evaluation contexts

[Andrea Fontana]

On Sunday, 24 March 2013 at 22:10:06 UTC, bearophile wrote:
> import std.array: empty;
> void main() {
>     auto a = [1];
>     if (a.empty) {} // OK
>     if (a is null) {} // OK
> }
>
>
> Bye,
> bearophile

why not a.length == 0 ?