private static boolean isThisReference(@Nullable PsiExpression expression, @Nullable PsiClass psiClass) {
      if (!(expression instanceof PsiThisExpression thisExpression)) {
        return false;
      }
      final PsiJavaCodeReferenceElement qualifier = thisExpression.getQualifier();
      return qualifier == null || psiClass != null && qualifier.isReferenceTo(psiClass);
    }
private static boolean isThisReference(@Nullable PsiExpression expression, @Nullable PsiClass psiClass)