private static PsiVariable findSameNameSibling(@NotNull PsiVariable variable) {
    PsiElement scope = variable.getParent();
    PsiElement[] children = scope.getChildren();
    for (PsiElement child : children) {
      if (child instanceof PsiVariable) {
        if (child.equals(variable)) continue;
        if (Objects.equals(variable.getName(), ((PsiVariable)child).getName())) {
          return (PsiVariable)child;
        }
      }
    }
    return null;
  }
private static PsiVariable findSameNameSibling(@NotNull PsiVariable variable)