func (w *SnowballWord) FitsInR2(x int) bool {
	return w.R2start <= len(w.RS)-x
}
func (w *SnowballWord) FitsInR2(x int) bool {
	return w.R2start <= len(w.RS)-x
}
func ( w * SnowballWord ) FitsInR2 ( x int ) bool { return w . R2start <= len ( w . RS ) - x }
// Returns true if `x` runes would fit into R2.
//
Returns true if x runes would fit into R2 .