class RuboCop::AST::Node

def parent_module_name_for_block(ancestor)
  if ancestor.method?(:class_eval)
    # `class_eval` with no receiver applies to whatever module or class
    # we are currently in
    return unless (receiver = ancestor.receiver)
    yield unless receiver.const_type?
    receiver.const_name
  elsif !new_class_or_module_block?(ancestor)
    yield
  end
end