anchor.diff:        ofType {
           kind
           name
  +        ofType {
  +          kind
  +          name
  +          ofType {
  +            kind
  +            name
  +            ofType {
  +              kind
  +              name
  +              ofType {
  +                kind
  +                name
  +              }
  +            }
  +          }
  +        }
         }
       }
     }
  
positive.code:     directives {
        name
        description
        args {
          ...InputValue
        }
        locations
      }
    }
  }
  
  fragment FullType on __Type {
    kind
    name
  
negative.code:     ...TypeRef
    }
  }
  fragment InputValue on __InputValue {
    name
    description
    type { ...TypeRef }
    defaultValue
  }
  fragment TypeRef on __Type {
    kind
    name
  