Fix for skipping last two nodes in processing

It skips the processing of last two nodes. The example itself doesnt work, because of this bug.
```
bin/swiffer examples/jsControl.tl
```
doesn't show anything in the console. With this fix, it shows the following
```
Line p, Column o: Use one of the available special characters: s, n, r, lb, rb
@if is deprecated. Please use @eq, @gt, @lt, etc.
```