The expression in the `then` part

Property definitions

	# The expression in the `then` part
	var n_then: AExpr is writable, noinit

src/parser/parser_nodes.nit:1993,2--1994,38

	redef fun n_then=(node)
	do
		_n_then = node
		node.parent = self
	end

src/parser/parser_prod.nit:3179,2--3183,4