anchor.diff:    }
   
     @override
  +  TypeParameterizedElementMixin get typeParameterContext => this;
  +
  +  @override
     List<TypeParameterElement> get typeParameters {
       if (_unlinkedClass != null) {
  -      return resynthesizedTypeParameters;
  +      return super.typeParameters;
       }
       return _typeParameters;
     }
  
positive.code: /**
   * An [AbstractClassElementImpl] which is a class.
   */
  class ClassElementImpl extends AbstractClassElementImpl {
    /**
     * The unlinked representation of the class in the summary.
     */
  
negative.code:  * A concrete implementation of a [ClassElement].
   */
  abstract class AbstractClassElementImpl extends ElementImpl
      implements ClassElement {
    /**
     * A list containing all of the accessors (getters and setters) contained in
  