(copy_text, count_size_as_multibyte, insert_1):

(copy_text, count_size_as_multibyte, insert_1):
(count_combining_before, count_combining_after, insert_1_both):
(insert, insert_and_inherit, insert_string):
(insert_before_markers, insert_before_markers_and_inherit):
String pointer args now point to const.