Convert all the other function-defining macros.

(Perhaps C2099 will finally deprecate old-style function definitions and
allow you to declare parameters without names, just as C++ does, and
compilers will - obviously - not warn about those parameters being
unreferenced, obviating the need for __attribute((unused))__ and the
like.  And perhaps monkeys will fly out of....)

Change-Id: Iff295c1854e66eb4f9e02cdd5761e0191d371365
Reviewed-on: https://code.wireshark.org/review/4018
Reviewed-by: Guy Harris <guy@alum.mit.edu>