class RuboCop::Cop::InternalAffairs::RedundantMessageArgument


add_offense(node)
# good
add_offense(node, message: MSG)
# bad
@example
if they are defined.
will automatically use ‘#message` or `MSG` (in that order of priority)
Checks for redundant message arguments to `#add_offense`. This method

def offending_range(node) 

def offending_range(node)
  with_space = range_with_surrounding_space(node.source_range)
  range_with_surrounding_comma(with_space, :left)
end

def on_send(node) 

def on_send(node)
  return unless (kwargs = node_type_check(node))
  kwargs.pairs.each do |pair|
    redundant_message_argument(pair) do
      add_offense(pair) do |corrector|
        range = offending_range(pair)
        corrector.remove(range)
      end
    end
  end
end