A predicate used to test whether a ibp-line-object describes a line that has a tail.
Only three line types don't have a tail: lost-band
encounters, destroyed-band encounters, and
non-transaction lines (such as page header lines).
(defun ibp-line-has-tail-p (ibp-line-object)
"Predicate: is this line one of the types that has a tail?
"
(if (or (eq (ibp-line-kind ibp-line-object) 'non-trans)
(eq (ibp-line-kind ibp-line-object) 'lost-destroyed))
nil
t))