Bidirectional inference did not resolve nested generics

[hishamhm]

Discussed in https://github.com/teal-language/tl/discussions/498

^{Originally posted by **lua-rocks** December 29, 2021} This is example from tutorial, but I changed value **3** to **"wtf"** and I expected to get an error, because X in this case is a number and "wtf" is a string. But there are no errors. Why? ```lua local record Tree {Tree} item: X end local t: Tree = { item = 1, { item = 2 }, { item = "wtf", { item = 4 } }, } ``` Also VSCode says that `t[2].item` is `number` 🙈 

[hishamhm]

This is indeed a bug! I'm pushing a quick fix now. Thanks for reporting @lua-rocks!