You can't pass options to the url when using the array syntax with `link_to`, e.g:

``` ruby
link_to post.title, [blog, post], anchor: 'my_anchor'
```

won't work because the options hash gets treated as HTML options for the link. We tried adding them inside the array in #7259 but it had to be reverted due to a clash with form for. I'd probably just remove this block since we already mention that options is the same as the options for `url_for` earlier in the documentation for `link_to`.