Fix ARI warning about functions without parameters that do not

	Fix ARI warning about functions without parameters that do not
	use (void).
	* breakpoint.c (all_tracepoints): Replace () by (void).
	* f-exp.y (match_string_literal): Ditto.
	(yylex): Ditto.
	* m2-exp.y (yylex): Ditto.
	* mep-tdep.c (current_me_module): Ditto.
	(current_options): Ditto.
	(current_cop_data_bus_width): Ditto.
	(current_cr_names): Ditto.
	(current_cr_is_float): Ditto.
	(current_ccr_names): Ditto.
	* objc-exp.y (yylex): Ditto.
	* p-exp.y (yylex): Ditto.
	* remote.c (send_interrupt_sequence): Ditto.
	* tracepoint.c (current_trace_status): Ditto.
	* python/py-evts.c (gdbpy_initialize_py_events): Ditto.
	* python/py-prettyprint.c (push_dummy_python_frame): Ditto.