GitLab

* src/textprop.c (validate_interval_range):
Remove useless code.  Fix comment to match current behavior.
(set_text_properties, copy_text_properties): Simplify, as
validate_interval_range has not incremented START or END for
quite some time.
(copy_text_properties): Assume C99.  Fix an unlikely
integer overflow bug if WIDE_EMACS_INT.