Gem::Specification#activate

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/specification.rb, line 1417
def activate
  other = Gem.loaded_specs[name]
  if other
    check_version_conflict other
    return false
  end

  raise_if_conflicts

  activate_dependencies
  add_self_to_load_path

  Gem.loaded_specs[name] = self
  @activated = true
  @loaded = true

  true
end