static foreach direct use of variables

[Michelle Long]

auto foo(S s)
{
	static foreach(k, p; [s, this])
		for(int i = 0; i < p.length; i++)
         		...
}

The idea is to provide single for loop structure for each of the 
variables(in this case s and this).

The is to avoid string mixins which are pathetic for this kind of 
work.

The point is that instead of having to do

		for(int i = 0; i < s.length; i++)
                  ...
		for(int i = 0; i < this.length; i++)
                  ...

in which case ... might be very long.

Sure one can create a function and all that mess but the compiler 
should be able to do symbol replacement very naturally and easily.