@Override
    public void visitBinaryExpression(@NotNull PsiBinaryExpression expression) {
      super.visitBinaryExpression(expression);
      PsiExpression nan = extractNaNFromComparison(expression);
      if (nan != null) {
        registerError(nan, expression);
      }
    }
@Override
    public void visitBinaryExpression(@NotNull PsiBinaryExpression expression)