* except.h (struct handler_info): Add handler_number field
	* except.c (gen_exception_label): EH labels no longer need to be
	on the permanent obstack.
	(get_new_handler): Set the label number field.
	(output_exception_table_entry): Regenerate handler label reference
	from the label number field.
	(init_eh): Remove a blank line
	* integrate.c (get_label_from_map): Labels no longer need to be
	on the permanent obstack.

From-SVN: r24203