class RuboCop::Cop::Layout::CommentIndentation

def autocorrect_preceding_comments(comment)

then correcting one more line, and so on.
of correcting, saving the file, parsing and inspecting again, and
comment and have the same indentation. This is to avoid a long chain
Corrects all comment lines that occur immediately before the given 
def autocorrect_preceding_comments(comment)
  corrections = []
  line_no = comment.loc.line
  column = comment.loc.column
  comments = processed_source.comments
  (comments.index(comment) - 1).downto(0) do |ix|
    previous_comment = comments[ix]
    break unless should_correct?(previous_comment, column, line_no - 1)
    corrections << autocorrect_one(previous_comment)
    line_no -= 1
  end
  corrections
end