<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/119108>119108</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [FR] Provide an alternative diff UI for LLVM's Lit test framework
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          glyh
      </td>
    </tr>
</table>

<pre>
    After some of my experience with LIT, I feel the error message provide while being informative, but not the most readable one. 

Thus it would be nice if we design a new interface for lit, ideally would yield error message like https://github.com/dandavison/delta, or just provide a general interface and let end user decide how the unit test failure should be reported. 

For example, here's `git show` on my system, I have a 2 paneled view to compare


</pre>
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