Reset class member variables

[Sean Kelly]

mandel wrote:
> Ok, I jumped to early. :/
> This method ignores const values that I have set in the ctor:
> So, "this() { y = 123; }" would be reset to 0.

Hrm... to deal with that I think you'd have to use foreach and tupleof, 
but I don't think D 1.0 provides a means for detecting the storage type 
of a declaration.  Ideally, you'd want to do something like this:

foreach( pos, inout val; this.tupleof )
{
     static if( !is( typeof( val ) : const ) )
         val = this.classinfo.init.tupleof[pos];
}