Function expressions can have names. This is not accounted for

```ts
const y = function x() {
    x();
}
```

```lua
local y
y = function(self)
    x(_G)
end
```

[Playground Link](https://typescripttolua.github.io/play.html#src=const%20y%20%3D%20function%20x()%20%7B%0A%20%20%20%20x()%3B%0A%7D%0A)