The `enum` keyword.

Property definitions

	# The `enum` keyword.
	var n_kwenum: TKwenum is writable, noinit

src/parser/parser_nodes.nit:1326,2--1327,42

	redef fun n_kwenum=(node)
	do
		_n_kwenum = node
		node.parent = self
	end

src/parser/parser_prod.nit:681,2--685,4