private static boolean isNegatedLiteral(PsiExpression expression) {
      if (!(expression instanceof PsiPrefixExpression prefixExpression)) {
        return false;
      }
      final IElementType tokenType = prefixExpression.getOperationTokenType();
      if (!JavaTokenType.MINUS.equals(tokenType)) {
        return false;
      }
      final PsiExpression operand = prefixExpression.getOperand();
      return operand instanceof PsiLiteralExpression;
    }
private static boolean isNegatedLiteral(PsiExpression expression)