@Override
  public LocalQuickFix buildFix(Object... infos) {
    final PsiReferenceExpression expressionToQualify = (PsiReferenceExpression)infos[0];
    final PsiField fieldAccessed = (PsiField)infos[1];
    return AddThisQualifierFix.buildFix(expressionToQualify, fieldAccessed);
  }
@Override
  public LocalQuickFix buildFix(Object... infos)