多相ではないオーバーロードが存在するノードの型を交差型として扱う

[KisaragiEffective]

例: logix.net.request_host_access: Overroad<[({request: impulse, host: string, port: i32, reason: MaybeAbsent<string>}) => ({on_denied: impulse, on_granted: impulse, on_ignored: impulse}), ({request: impulse, url: url, reason: MaybeAbsent<string>}) => ({on_denied: impulse, on_granted: impulse, on_ignored: impulse})]>