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          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - We should use watchpoints to make sure we don't have indexed properties for concat and splice"
   href="https://bugs.webkit.org/show_bug.cgi?id=155592">155592</a>
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        </tr>

        <tr>
          <th>Summary</th>
          <td>We should use watchpoints to make sure we don't have indexed properties for concat and splice
          </td>
        </tr>

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

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

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
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        <tr>
          <th>Priority</th>
          <td>P2
          </td>
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        <tr>
          <th>Component</th>
          <td>JavaScriptCore
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>keith_miller&#64;apple.com
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      <p>
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        <pre>In the fast path of concat and splice we currently walk the prototype chain to ensure that there are no indexed properties on the prototype of our array. Instead we should put watchpoints on Array.prototype and Object.prototype.</pre>
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