DEBUGGER__.make_thread_list

# File tmp/rubies/ruby-3.0.5/lib/debug.rb, line 1048
def make_thread_list
  hash = {}
  for th in Thread::list
    if @thread_list.key? th
      hash[th] = @thread_list[th]
    else
      @max_thread += 1
      hash[th] = @max_thread
    end
  end
  @thread_list = hash
end