private class FlatBufferCharReverseIterator
super IndexedIterator[Char]
var target: FlatBuffer
var curr_pos: Int
redef fun index do return curr_pos
redef fun is_ok do return curr_pos >= 0
redef fun item do return target[curr_pos]
redef fun next do curr_pos -= 1
end
lib/core/text/flat.nit:1220,1--1235,3