@Nullable
  public static PsiExpression getValueComparedWithZero(@NotNull PsiBinaryExpression binOp, IElementType opType) {
    if (!binOp.getOperationTokenType().equals(opType)) return null;
    PsiExpression rOperand = binOp.getROperand();
    if (rOperand == null) return null;
    PsiExpression lOperand = binOp.getLOperand();
    if (isZero(lOperand)) return rOperand;
    if (isZero(rOperand)) return lOperand;
    return null;
  }
@Nullable
  public static PsiExpression getValueComparedWithZero(@NotNull PsiBinaryExpression binOp, IElementType opType)