except.h (eh_status): Adjust documentation for x_protect_list.

except.h (eh_status): Adjust documentation for x_protect_list.

	* except.h (eh_status): Adjust documentation for x_protect_list.
	(begin_protect_partials): New function.
	* except.c (enqueue_eh_entry): Fix formatting.
	(get_first_handler): Add consistency check.
	(add_partial_entry): Adjust usage of protect_list.
	(emit_cleanup_handler): Save and restore ehqueue.
	(expand_start_all_catch): Add comment.
	(begin_protect_partials): New function.
	(end_protect_partials): Adjust usage of protect_list.
	(init_eh_for_function): Use xcalloc.

From-SVN: r30667