Gem::Resolver#filter_cooldown_specs

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/resolver.rb, line 404
def filter_cooldown_specs(specs)
  remote = specs.select do |s|
    Gem::Resolver::APISpecification === s || Gem::Resolver::IndexSpecification === s
  end
  if remote.any? && remote.none?(&:created_at)
    Gem::Cooldown.warn_missing_created_at remote.first.source
  end

  specs.reject do |s|
    next false unless @cooldown.skip?(s.created_at)

    (@cooldown_skipped_specs ||= {})[[s.name, s.version]] ||= s
    true
  end
end