#3538666 getPreviewMode() and setPreviewMode() on NodeTypeInterface now expect a NodePreviewMode enum

to:
  arity_min: 1
  fqn: '\Drupal\node\NodeTypeInterface::getPreviewMode'
from:
  any_of:
    -
      types:
        - int
    -
      types:
        - const
  arity_max: 1
  arity_min: 1
  fqn: '\Drupal\node\NodeTypeInterface::setPreviewMode'
match_unresolved: true
to:
  arity_max: 1
  arity_min: 1
  fqn: '\Drupal\node\NodeTypeInterface::setPreviewMode'
  types:
    - enum_case