current "ref" args state.

[Kapps via Digitalmars-d]

Coming from C#, I definitely agree that non-const ref/out 
arguments should have to include a 'ref' or '&' in front, much 
like pointers do. Silent modification of parameters feels odd to 
me for sure. However at this point it's frankly too late to 
change it, as the change is not worth the tremendous amount of 
breakage that it would cause.