* ggc-page.c (extra_order_size_table): Insns have 9 slots. Regs
	don't have 2.

	* ggc-page.c (struct globals): Add new fields to keep track of the
	total allocated memory and overhead.
	(ggc_print_statistics): Print them.
	(ggc_alloc): Keep track of the total allocated memory and the
	overhead.

	* tree.c (dump_tree_statistics): Increase spacing.
	(enum tree_node_kind): Move to ...
	* tree.h (enum tree_node_kind): ... here.
	(tree_node_counts, tree_node_sizes): Declare.

	* doc/include/texinfo.tex: Upgrade to texinfo 4.6.

From-SVN: r69330