anchor.diff:        ofType {
           kind
           name
  +        ofType {
  +          kind
  +          name
  +          ofType {
  +            kind
  +            name
  +            ofType {
  +              kind
  +              name
  +              ofType {
  +                kind
  +                name
  +              }
  +            }
  +          }
  +        }
         }
       }
     }
  
positive.code: # https://gist.github.com/craigbeck/b90915d49fda19d5b2b17ead14dcd6da
  query IntrospectionQuery {
    __schema {
      queryType { name }
  
negative.code:     ...TypeRef
    }
  }
  fragment InputValue on __InputValue {
    name
    description
    type { ...TypeRef }
    defaultValue
  }
  fragment TypeRef on __Type {
    kind
    name
  