https://github.com/rwjblue/ember-decorators/issues/123#issuecomment-316494043:

We should add some decorators specifically for handling those special component API's (tagName, classNames, classNameBindings, are there others?). Can you open a separate issue for that?

• attributeBindings from ViewMixin
• classNameBindings from ClassNamesSupport
• classNames from ClassNamesSupport
• elementId from ViewMixin
• layout
• tagName from ViewMixin