<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/145814>145814</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [HLSL][RootSignature] Fix formatting of puncuator Tokens in `LexHLSL`
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            HLSL
      </td>
    </tr>

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

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

<pre>
    There is a bug in the diagnostic output of `ParseHLSLRootSignature` when outputting a punctuator. Instead of outputting the string literal of the token `','` it instead will treat it as an integer and output the ascii value.

Proposed solution:

Update the following switch statement to have a separate macro for `PUNCUATOR` that will output a string literal of the character as opposed to just the character.

https://github.com/llvm/llvm-project/blob/b413bea4355e51e3f3ff248b7d62b4d5d712c743/clang/include/clang/Lex/LexHLSLRootSignature.h#L46-L56

For instance: https://godbolt.org/z/vbY717qMh
</pre>
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