def add_branch(steps, source_line, ruby_code = nil)
      branches << Branch.new(steps, source_line, ruby_code)
    end
def add_branch(steps, source_line, ruby_code = nil)
      branches << Branch.new(steps, source_line, ruby_code)
    end
@param [String] name
 @param [LL::SourceLine] source_line


 @see [LL::Branch#initialize]