private static void inspectBinaryExpression(@NotNull UBinaryExpression node, @NotNull ProblemsHolder holder) {
    if (!SUPPORTED_OPERATORS.contains(node.getOperator())) return;
    if (isNull(node.getLeftOperand()) || isNull(node.getRightOperand())) return;
    PsiMethod psiMethod = node.resolveOperator();
    if (psiMethod == null) return;
    if (!METHOD_NAMES.contains(psiMethod.getName())) return;
    inspectMethodCall(psiMethod, holder, () -> {
      UIdentifier identifier = node.getOperatorIdentifier();
      return identifier != null ? identifier.getSourcePsi() : null;
    });
  }
private static void inspectBinaryExpression(@NotNull UBinaryExpression node, @NotNull ProblemsHolder holder)