Remove some is_mi_like_p from breakpoint code

Remove some is_mi_like_p from breakpoint code

This removes some uses of is_mi_like_p from the breakpoint code.  The
break-catch-throw.c change brings it into line with what other
breakpoint classes do.  The other changes simply replace printf calls
with ui_out::text or ui_out::message calls.

ChangeLog
2018-04-30  Tom Tromey  <tom@tromey.com>

	* breakpoint.c (mention): Remove use of is_mi_like_p.
	(print_mention_ranged_breakpoint): Likewise.
	* break-catch-throw.c (print_it_exception_catchpoint): Remove use
	of is_mi_like_p.