Allow symbols for controller/action pair

[ocarreterom]

According to the docs, controller/action pair can be used with symbols, but its not working.

Controller/Action Pair          -> [[:controller], [:action_a, :action_b]]

The examples shows it should be use as strings:

active_link_to 'User Edit', edit_user_path(@user), active: [['people', 'news'], ['show', 'edit']]

It's confused when you can use [controller: :action], but not [[:controller], [:action]].