Dump probability for edges a frequency for BBs

Dump probability for edges a frequency for BBs

	* gimple-pretty-print.c (dump_edge_probability): New function.
	(dump_gimple_switch): Dump label edge probabilities.
	(dump_gimple_cond): Likewise.
	(dump_gimple_label): Dump
	(dump_gimple_bb_header): Dump basic block frequency.
	(pp_cfg_jump): Replace e->dest argument with e.
	(dump_implicit_edges): Likewise.
	* tree-ssa-loop-ivopts.c (get_scaled_computation_cost_at):
	Use gimple_bb (at) instead of at->bb.
	* gcc.dg/builtin-unreachable-6.c: Update test to not to scan
	parts for frequencies/probabilities.
	* gcc.dg/pr34027-1.c: Likewise.
	* gcc.dg/strict-overflow-2.c: Likewise.
	* gcc.dg/tree-ssa/20040703-1.c: Likewise.
	* gcc.dg/tree-ssa/builtin-sprintf-2.c: Likewise.
	* gcc.dg/tree-ssa/pr32044.c: Likewise.
	* gcc.dg/tree-ssa/vector-3.c: Likewise.
	* gcc.dg/tree-ssa/vrp101.c: Likewise.
	* gcc.dg/tree-ssa/dump-2.c: New test.

From-SVN: r242837