PR middle-end/88663
	* gimple-fold.c (get_range_strlen): Update prototype to no longer
	need the flexp argument.
	(get_range_strlen_tree): Drop flexp argument.  Drop flexp argument
	from calls to get_range_strlen.  Update comments.  Just update
	VAL for an unterminated const char array and let the reset of the
	code handle it normally.  No longer try to set *flexp.  Adjust
	return value.
	(get_range_strlen): Update for the new get_range_strlen API.
	(get_maxval_strlen): Similarly.
	(gimple_fold_builtin_strlen): Handle update meaning of return value
	from get_range_strlen.
	* gimple-ssa-sprintf.c (get_string_length): Update for the new
	get_range_strlen API.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r267520