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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - REGRESSION(r193974): It made ~300 tests fail on Linux platforms"
   href="https://bugs.webkit.org/show_bug.cgi?id=152245">152245</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>REGRESSION(r193974): It made ~300 tests fail on Linux platforms
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>Other
          </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>Blocker
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P1
          </td>
        </tr>

        <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>ossy&#64;webkit.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>cgarcia&#64;igalia.com, gyuyoung.kim&#64;webkit.org, hs85.jeong&#64;samsung.com, keith_miller&#64;apple.com, ljaehun.lim&#64;samsung.com, sbarati&#64;apple.com
          </td>
        </tr>

        <tr>
          <th>Blocks</th>
          <td>108645, 151839
          </td>
        </tr></table>
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        <div>
        <pre><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [ES6] Add support for Symbol.hasInstance"
   href="show_bug.cgi?id=151839#c30">https://bugs.webkit.org/show_bug.cgi?id=151839#c30</a>

It made many JSC tests crash on Linux bots:
- GTK X86_64 - <a href="https://build.webkit.org/builders/GTK%20Linux%2064-bit%20Release%20%28Tests%29/builds/12637">https://build.webkit.org/builders/GTK%20Linux%2064-bit%20Release%20%28Tests%29/builds/12637</a>
- GTK X86 - <a href="https://build.webkit.org/builders/GTK%20Linux%2032-bit%20Release/builds/57694">https://build.webkit.org/builders/GTK%20Linux%2032-bit%20Release/builds/57694</a>
- GTK ARMv7(?): <a href="https://build.webkit.org/builders/GTK%20Linux%20ARM%20Release/builds/9652">https://build.webkit.org/builders/GTK%20Linux%20ARM%20Release/builds/9652</a>

- EFL X86_64 - <a href="https://build.webkit.org/builders/EFL%20Linux%2064-bit%20Release%20WK2/builds/25878">https://build.webkit.org/builders/EFL%20Linux%2064-bit%20Release%20WK2/builds/25878</a>
- EFL Linux AArch64: <a href="https://build.webkit.org/builders/EFL%20Linux%20AArch64%20Release/builds/4700">https://build.webkit.org/builders/EFL%20Linux%20AArch64%20Release/builds/4700</a>

(EFL ARMv7 bots work fine.)</pre>
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