DMD 0.149 release

[Wang Zhen]

Walter Bright wrote:
> Changed on_scope keywords per the general consensus of the n.g.
> 
> The implicit function template instantiation is a bit limited at the moment, 
> deduction won't work for types derived from templates, and the mechanism to 
> pick the most specialized template doesn't work.
> 
> http://www.digitalmars.com/d/changelog.html
> 
> 
> 

Great work, Walter!

I'll throw out more bizarre test cases to help you perfect dmd ;)