The `with` keyword

Property definitions

	# The `with` keyword
	var n_kwwith: TKwwith is writable, noinit

src/parser/parser_nodes.nit:2073,2--2074,42

	redef fun n_kwwith=(node)
	do
		_n_kwwith = node
		node.parent = self
	end

src/parser/parser_prod.nit:3459,2--3463,4