return p.index == q.index
}

// SameFileAndLine reports whether p and q are positions on the same line in the same file.
func (p XPos) SameFileAndLine(q XPos) bool {
	return p.index == q.index && p.lico.SameLine(q.lico)
}

// After reports whether the position p comes after q in the source.
// For positions with different bases, ordering is by base index.
func (p XPos) After(q XPos) bool {
	n, m := p.index, q.index