Allow comments before an access modifier

[agrimm]

The following code

# Demonstrate that comments aren't allowed before an access modifier
class MyClass
  def foo
    bar
  end

  # FIXME: Get rid of private methods in this class.
  private

  def bar
    puts 'bar called'
  end
end

Generates the following offense

comment_before_access_modifier.rb:8:3: C: Style/EmptyLinesAroundAccessModifier: Keep a blank line before and after private.
  private
  ^^^^^^^

If an access modifier has a comment before it, but an empty line before the comment, then it should not generate an offense, or it should be possible to configure the cop to not generate an offense.

I don't have any opinion about comments after an access modifier. I guess they should be allowed for consistency, but I don't see the point of having a comment after an access modifier.

[bbatsov]

Good catch. This should be fixed.