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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Heap::waitForCollector() needs to set m_mutatorDidRun."
   href="https://bugs.webkit.org/show_bug.cgi?id=227782">227782</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Heap::waitForCollector() needs to set m_mutatorDidRun.
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>JavaScriptCore
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned@lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mark.lam@apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Heap::waitForCollector() is one of 2 clients of Heap::stopIfNecessarySlow(unsigned oldState).  The other client, Heap::stopIfNecessarySlow() sets m_mutatorDidRun to true after calling Heap::stopIfNecessarySlow(unsigned oldState).  Heap::waitForCollector() needs to do the same.  Constraint solvers rely on this.

<a href="rdar://78326474">rdar://78326474</a></pre>
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