private static PsiExpression getAnotherOperand(@NotNull PsiBinaryExpression expression, PsiExpression operand) {
    PsiExpression rOperand = skipParenthesizedExprDown(expression.getROperand());
    return rOperand != operand ? rOperand : expression.getLOperand();
  }
private static PsiExpression getAnotherOperand(@NotNull PsiBinaryExpression expression, PsiExpression operand)