onDispatch demo not compiling

[Shachar via Digitalmars-d-learn]

On Thursday, 21 August 2014 at 06:11:06 UTC, ketmar via 
Digitalmars-d-learn wrote:
> that will do the trick.
>
Indeed. I ended up simply directly calling 
"a.opDispatch!"do_something_cool"(5, 6)", which brought most of 
those issues to light.

Shachar