Describe the Bug

While vanilla TypeAlias is successfully expanded in reveal_type() output, it won't expand at all when used inside a generic class. For brevity, sandbox example uses tuple() for demonstration, while I'm encountering the error in some custom generic class in stub file. This exposes internal alias names in reveal_type() output, so people need to dig deep into stub files to find out their meanings.

Sandbox Link

https://pyrefly.org/sandbox/?project=N4IgZglgNgpgziAXKOBDAdgEwEYHsAeAdAA4CeSIAxAAQDqMUAxrgLYzUAuunAFuwAqkATjDBRS1AMoYcBADS8IcakuqpqxVAHMYAHXQ0A7nxHVSuAK7VGGaoaEQOMBXB6pTM6rHfo1eCxycpMQQ6FoqvoIcPLjohPqUCdQAEjAeHtaWxLDUYDCoHBYiyrhgispoWHj4iEkAtNQA4jCBIqhQdRwQbEHE7Ix8jADWoeF5MDiow-XUAKpw7CIAbvlQAPocwTAAFACUnNyhcH2MgaF5QiKYvfAzMPh9DmzogYaOPLzsAJIAIgCiuXyhWKvAKdnYcAsxGIuCEgW2MEIWkIagCuGYLGyLWc1C0uE6%2BMwolCjggsQUMRWQgULUYuxmtAcTjUWGoQgskVI0VimSJ1EwEBEp3EETMliE1GwQlwhgWQn0%2BjA0pYvVGKkxsMCACoFehJKwYABBKAQVBwRDUAAqW2NpuUAF5qAAZRxpdoAbQADApdCAAGLtBa%2BgC6uuWqw2W22%2BrYtrN9PQ4fakb622jBrjcDkuwTSfWm1TaZjRpNZuz2d2IDkIAC0DgJHIiCocy6Js2uQ5pzJ6DguqJZTAsJYBTW6AsLGwaW2NQiHH2dQAfNQ4BwhLVfNRNyJgb4wL6AHLjydr6jAfAAX19%2BirIDIIjEpEIXBYUAoNEE95FlVk%2BEy6EgWhFAU3bxAYUgwOwPAcBwxDmgA9HBd6iOIhCwlocEwOgcGYOicBwcw-4QIBQjAbEcG5LCahLKg0CoNgOQEQBQFdDyuDECxPagWQ3LoHUVJwN21COr6ADMhAAIwAExXugIDntWUxdCsfrQDAFDftUDZyUAA

(Only applicable for extension issues) IDE Information

No response