* gimple-fold.c (strlen_range_kind): New enum.
	(get_range_strlen): Update signature to use strlen_range_kind
	instead of type+fuzzy.
	(get_range_strlen_tree): Update signature to use
	strlen_range_kind instead of type+fuzzy.  Pass rkind down to
	get_range_strlen.  Check the rkind enum value instead of
	type+fuzzy.
	(get_range_strlen): Similarly.
	(get_maxval_strlen): Update signature to make NONSTR argument have
	a default value and make static.  Add asserts to ensure sanity of
	arguments.  Update calls to get_range_strlen.
	(gimple_fold_builtin_strcpy): Update calls to get_maxval_strlen.
	(gimple_fold_builtin_strcat, gimple_fold_builtin_fputs): Similarly.
	(gimple_fold_builtin_memory_chk): Similarly.
	(gimple_fold_builtin_stxcpy_chk): Similarly.
	(gimple_fold_builtin_snprintf_chk): Similarly.
	(gimple_fold_builtin_sprintf, gimple_fold_builtin_snprintf): Similarly.
	* gimple-fold.h (get_maxval_strlen): Delete prototype.

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

From-SVN: r267482