Property definitions

nitc $ ASafeExpr :: defaultinit
# A receiver with a `?` suffix used in safe call operator.
class ASafeExpr
	super AExpr

	# The expression made safe
	var n_expr: AExpr is writable, noinit

	# The `?` symbol
	var n_quest: TQuest is writable, noinit
end
src/parser/parser_nodes.nit:2787,1--2796,3