@Override
  public void visitPrefixExpression(@NotNull PsiPrefixExpression expression) {
    PsiExpression operand = expression.getOperand();
    if (operand == null) {
      myIsConstant = false;
      return;
    }
    operand.accept(this);
    if (!myIsConstant) return;
    IElementType opType = expression.getOperationTokenType();
    if (opType == JavaTokenType.PLUS || opType == JavaTokenType.MINUS || opType == JavaTokenType.TILDE || opType == JavaTokenType.EXCL) {
      return;
    }
    myIsConstant = false;
  }
@Override
  public void visitPrefixExpression(@NotNull PsiPrefixExpression expression)