haml/haml — pull request #627 by amatsuda (2013-02-06 08:00:26+00:00)
Title: Symbol does not respond_to downcase in Ruby 1.8.7

This patch fixes

/haml-3.2.0.rc.3/lib/haml/filters.rb:68:in `remove_filter': undefined method `downcase' for :Sass:Symbol (NoMethodError)

in Ruby 1.8.7.