Gem::SafeMarshal::Visitors::ToRuby#formatted_stack

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/safe_marshal/visitors/to_ruby.rb, line 358
def formatted_stack
  formatted = []
  @stack[0, @stack_idx].each do |e|
    if e.is_a?(Integer)
      if formatted.last == "ivar_"
        formatted[-1] = "ivar_#{e}"
      else
        formatted << "[#{e}]"
      end
    else
      formatted << e
    end
  end
  formatted
end