LuaTable is bugged: Type 'number' does not satisfy the constraint 'AnyTable'

Steps to reproduce:

- `git clone git@github.com:Zamiell/tstl-bug.git`
- `npm install`
- `npx tstl`

Will produce the following error:

```
Type 'number' does not satisfy the constraint 'AnyTable'.
```

This is the source file:
https://github.com/Zamiell/tstl-bug/blob/master/src/main.ts