http://www.digitalmars.com/d/dbc.html
http://www.digitalmars.com/d/class.html

There are no:
- AssertException
- InException
- OutException
- InvariantException

There's just the Phobos class: AssertError

(and of course the callback function for the compiler:
extern (C) void _d_assert(char[] filename, uint line);

--anders