[svn r54] Added support for nested delegates referencing parent's stack variables. Replaced tester.sh with a version written in D. A few bugfixes.

module with1;
struct S
{
    int i;
    float f;
}
void main()
{
    S s;
    with(s)
    {
        i = 0;
        f = 3.4;
    }
}