<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/59823>59823</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang::Decl::print
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          xingyc0979
      </td>
    </tr>
</table>

<pre>
    When the clang:: Decl:: print interface in Clang-15.02  involves the following code, it will output redundant embedded union structures, resulting in unknown errors.
input code:
    union { int buf[((sizeof(union
            { typeof(struct editorConfig) a;
 typeof(struct editorConfig) b; }))) ];
      } control;
output:
     union {
        union {
 typeof(struct editorConfig) a;
            typeof(struct editorConfig) b;
        };
        int buf[152];
    } control;
the ast of input code is as following:

</pre>
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