* coretypes.h (struct pretty_print_info): Make a coretype.
	(typedef pretty_printer): Likewise.
	* pretty-print.h (typedef pretty_printer): Not needed here anymore.
	* pretty-print.c (pp_write_text_as_dot_label_to_stream): New function.
	* rtl.h (str_pattern_slim): New prototype.
	(print_value, print_pattern, print_insn): Adjust prototypes to take
	a pretty-printer rather than a char buffer.
	* sched-vis.c (safe_concat): Remove.
	(print_exp): Print into a pretty-printer.
	(print_value): Likewise.
	(print_pattern): Likewise.
	(print_insn): Likewise.
	(print_insn_with_notes): New static function.
	(init_rtl_slim_pretty_print): New function.
	(dump_value_slim): Simplify.  Print into and flush a pretty-printer.
	(dump_insn_slim): Likewise.
	(dump_rtl_slim): Likewise.
	(str_pattern_slim): New function.
	* haifa-sched.c (model_recompute): Use str_pattern_slim instead of
	static buffers.
	(model_record_pressures): Likewise.
	(schedule_insn): Likewise.
	* sel-sched-dump.c (dump_insn_rtx_1): Likewise.
	(sel_prepare_string_for_dot_label): Refer to graph.c CFG dumper code.
	* graph.c: Include pretty-print.h.
	(init_graph_slim_pretty_print): New function.
	(print_escaped_line): Removed here, and reincarnated as
	pp_write_text_as_dot_label_to_stream.
	(draw_cfg_node): Print into a pretty printer.
	(draw_cfg_node_succ_edges): Likewise.
	(print_rtl_graph_with_bb): Likewise.
	* Makefile.in (graph.o): Fix dependencies.
	(tree-optimize.o, toplev.o, sched-vis.o): Likewise.

From-SVN: r193990