Uncaught syntax error when a required 'end' is missing

Despite the syntax error due to a missing 'end' token, this script does not throw a ParseException:

```
local script = {...}

function script.something()
    for i = 1, 10 do
        print(i)
    --end  -- <<== 'forgot' the end here
end

return script
```

This will silently return an empty LuaValue[] to C#.
