module RuboCop::RSpec::Node

def recursive_literal_or_const?

strictly literal.
In various cops we want to regard const as literal although it's not 
def recursive_literal_or_const?
  case type
  when :begin, :pair, *AST::Node::COMPOSITE_LITERALS
    children.compact.all?(&:recursive_literal_or_const?)
  else
    literal? || const_type?
  end
end