Property definitions

nitc $ ASubsetClasskind :: defaultinit
class ASubsetClasskind
	super AClasskind

	# The `subset` keyword.
	var n_kwsubset: TKwsubset is writable, noinit

	redef fun visit_all(v) do
		# TODO: Remove this redefinition once generated from the grammar.
		v.enter_visit(n_kwsubset)
	end
end
src/parser/parser_nodes.nit:1341,1--1351,3