Mixin demo: associative array initializers (with support for comments)

[Walter Bright]

Reiner Pope wrote:
> However, although it looks pretty horrible, it's a *much* easier job 
> than having to parse the whole thing -- all it needs to do is  read 
> through and ignore comments and things inside quotes, and DMD will 
> actually format it all correctly.

This is pretty cool that you were able to figure out a way to do this. 
My job is to find a way that you can do such things without it looking 
horrible <g>.