@Override
      public void visitBinaryExpression(@NotNull PsiBinaryExpression expression) {
        IElementType tokenType = expression.getOperationTokenType();
        if (tokenType != JavaTokenType.EQEQ && tokenType != JavaTokenType.NE) return;
        PsiExpression l = expression.getLOperand();
        PsiExpression r = expression.getROperand();
        if (r == null) return;
        checkBinary(l, r);
        checkBinary(r, l);
      }
@Override
      public void visitBinaryExpression(@NotNull PsiBinaryExpression expression)