Mono-D 0.4.3: Mixins, declaration constraints, static if() analysis

[alex]

Imho some really nice improvements concerning the code completion 
ability of Mono-D/D-IDE.

And no, CTFE as well as template mixins are NOT implemented yet ;)

http://mono-d.alexanderbothe.com
https://github.com/aBothe/Mono-D/issues
https://github.com/aBothe/D_Parser/issues

Furthermore, any ideas how to boost up expression evaluation, 
i.e. mixin evaluation performance?
I've made a hashing function which calculates relatively unique 
integer values for each expression - but for now I'm not really 
sure how to dimension an inter-parse caching, so the caching of 
an expression value as long as there are no changes made to 
either the expression itself or some base expression the actual 
expression may depends on.

Also for CTFE, I want to establish excessive caching so I don't 
have to execute the same function with the equal arguments more 
than once.

Not that the mixin evaluation performance is _that_ weak, but 
perhaps for thinking in terms of having CTFE and all the stuff 
implemented soon..

Is dmd caching mixin results when having one evaluated once?