* rtl.c (rtx_name): Constify a char*.

	* rtl.h (rtx_name, fix_sched_param): Likewise.

	* gmicro/gmicro.c (rtx_name): Remove redundant declaration.
	(mypr): Use accessor macro, not `rtx_name'.

	* genemit.c (print_code): Constify a char*.

	* genopinit.c (gen_insn): Use accessor macro, not `rtx_name'.

	* genpeep.c (print_code): Constify a char*.

	* genrecog.c (print_code): Likewise.

	* graph.c (start_fct, start_bb, node_data, draw_edge, end_fct,
	end_bb): Add static prototype.
	(draw_edge): Constify a char*.
	(end_bb): Remove unused parameter.

	* haifa-sched.c (fix_sched_param, safe_concat, print_exp
	print_block_visualization): Constify a char*.

From-SVN: r28782