var n_expr: AExpr is writable, noinit
var n_dotdotdot: TDotdotdot is writable, noinit
end
+class ANamedargExpr
+ super AExpr
+ var n_id: TId is writable, noinit
+ var n_assign: TAssign is writable, noinit
+ var n_expr: AExpr is writable, noinit
+end
class ATypeExpr
super AExpr
var n_type: AType is writable, noinit