[haXe] initializing instance variables in declaration

[Nicolas Cannasse]

> Hi,
> 
> I have a suggestion for reducing the typing required to initialize
> instance variables: make it legal to set their initial value at the
> point of declaration. So, instead of writing

IMHO, there's not so much need for this kind of sugar.
If your variable is a constant, you should as well use a static, that
you can already initialize this way. If it's not a constant, this is
good chances that it's parametrized by other variables or constructor
parameters, that you can't access outside the constructor body.

Nicolas