public static @Nullable PsiExpression getValueComparedWithZero(@NotNull PsiBinaryExpression binOp) {
    PsiExpression rOperand = binOp.getROperand();
    if (rOperand == null) return null;
    PsiExpression lOperand = binOp.getLOperand();
    if (ExpressionUtils.isZero(lOperand)) return rOperand;
    if (ExpressionUtils.isZero(rOperand)) return lOperand;
    return null;
  }
public static @Nullable PsiExpression getValueComparedWithZero(@NotNull PsiBinaryExpression binOp)