enum on AA's and delegates debug info

[Bert]

an AA using an enum uses int as the base type rather than the 
enum member name.

enum X { A, B, C};
AA[X] x;

will show

[0]
[1]

instead of

[A]
[B]

It shouldn't be hard to get it to display the names through 
conversion.

Also,

delegates in an array do not show any value. This makes it 
difficult to know if they actually any value. Maybe you could 
just show the address of the delegate?