clean_frame

# File activesupport/lib/active_support/backtrace_cleaner.rb, line 59
    def clean_frame(frame, kind = :silent)
      frame = frame.to_s
      @filters.each do |f|
        frame = f.call(frame.to_s)
      end

      case kind
      when :silent
        frame unless @silencers.any? { |s| s.call(frame) }
      when :noise
        frame if @silencers.any? { |s| s.call(frame) }
      else
        frame
      end
    end