[RFA/dwarf-2] Fix for the null record problem

[Michael Elizabeth Chastain]

Thanks Joel.

===

2004-02-26  J. Brobecker  <brobecker@gnat.com>

        * gdb.cp/class2.cc (empty): New class.
        (refer): New function.
        (main): Declare an object of type empty and use it.
        * gdb.cp/class2.exp: Print the value of an object of type empty.