<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/138025>138025</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [HLSL] Implement serialization of a root signature declaration
        </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>
    This issue tracks implementation of a text serialization for the in-memory representation of a root signature to be displayed when dumping a `RootSignatureDecl` as introduced for https://github.com/llvm/llvm-project/issues/119011.

This issue is ready to move out of designing when it is determined if we should implement such a serialization (will it be useful for testing purposes and/or if it would be valuable for a user to be able to see the construct root signature memory when dumping the AST decl).

AC:
- [ ] Implement a serialization of the in-memory constructs, as defined in `Frontend/HLSLRootSignature.h`
- [ ] Update `TextNodeDumper::VisitHLSLRootSignatureDecl` to dump the serialized text
- [ ] Define the equivalent for `JSONNodeDumper` and invoke the serialization
- [ ] Update testing in `RootSignatures-AST.hlsl` to validate the construct are as required
</pre>
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