#3496491 Preprocess functions in modules now support object-oriented implementations

from: 'core:hook:preprocess'
to: 'core:hook:preprocess'
from: 'core:hook:preprocess_HOOK'
to: 'core:hook:preprocess_HOOK'
to: \Drupal\Core\Hook\Attribute\LegacyHook
kind: attribute_predicate
to:
  arg: 0
  any_of:
    -
      string_in:
        - preprocess
    -
      string_starts_with:
        - preprocess_
attribute_fqn: \Drupal\Core\Hook\Attribute\Hook