private static String getOperatorText(@NotNull PsiBinaryExpression binaryExpression) {
      final PsiExpression rhs = binaryExpression.getROperand();
      assert rhs != null;
      final PsiJavaToken token = binaryExpression.getTokenBeforeOperand(rhs);
      assert token != null;
      return token.getText();
    }
private static String getOperatorText(@NotNull PsiBinaryExpression binaryExpression)