IPA C++ refactoring 3/N

IPA C++ refactoring 3/N

	* cgraph.h (csi_end_p): Removed.
	(csi_next): Likewise.
	(csi_node): Likewise.
	(csi_start): Likewise.
	(cgraph_node_in_set_p): Likewise.
	(cgraph_node_set_size): Likewise.
	(vsi_end_p): Likewise.
	(vsi_next): Likewise.
	(vsi_node): Likewise.
	(vsi_start): Likewise.
	(varpool_node_set_size): Likewise.
	(cgraph_node_set_nonempty_p): Likewise.
	(varpool_node_set_nonempty_p): Likewise.
	* cgraphunit.c (cgraph_process_new_functions): vec replaces
	cgraph_node_set.
	* ipa-inline-transform.c: Likewise.
	* ipa-utils.c (cgraph_node_set_new): Removed.
	(cgraph_node_set_add): Likewise.
	(cgraph_node_set_remove): Likewise.
	(cgraph_node_set_find): Likewise.
	(dump_cgraph_node_set): Likewise.
	(debug_cgraph_node_set): Likewise.
	(free_cgraph_node_set): Likewise.
	(varpool_node_set_new): Likewise.
	(varpool_node_set_add): Likewise.
	(varpool_node_set_remove): Likewise.
	(varpool_node_set_find): Likewise.
	(dump_varpool_node_set): Likewise.
	(free_varpool_node_set): Likewise.
	(debug_varpool_node_set): Likewise.
	* tree-emutls.c (struct tls_var_data):
	(emutls_index): Removed.
	(emutls_decl): Likewise.
	(gen_emutls_addr): Function implementation uses newly added
	hash_map<varpool_node *, tls_var_data>.
	(clear_access_vars): Likewise.
	(create_emultls_var): Likewise.
	(ipa_lower_emutls): Likewise.
	(reset_access): New function.

From-SVN: r213573