class RuboCop::Cop::Lint::UselessComparison

x.top >= x.top
@example
This cop checks for comparison of something with itself.

def on_send(node) 

def on_send(node)
  # lambda.() does not have a selector
  return unless node.loc.selector
  op = node.loc.selector.source
  return unless OPS.include?(op)
  receiver, _method, args = *node
  add_offense(node, :selector) if receiver == args
end