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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [Win][Debug] Assertion fails in TestWTF."
   href="https://bugs.webkit.org/show_bug.cgi?id=159299">159299</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[Win][Debug] Assertion fails in TestWTF.
          </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>
        </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>Tools / Tests
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>pvollan&#64;apple.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>lforschler&#64;apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The assert in the &amp; operator in the UniqueRef class fails, because the UniqueRef instance has been moved.
The Windows version of the UNUSED_PARAM macro is getting the address of the parameter, causing the assertion failure.

<span class="quote">&gt;        WTF.dll!WTFCrash() Line 317        C++</span >
     TestWTFLib.dll!WTF::UniqueRef&lt;TestWebKitAPI::A&gt;::operator&amp;() Line 54    C++
     TestWTFLib.dll!TestWebKitAPI::WTF_UniqueRef_Test::TestBody() Line 83    C++
     TestWTFLib.dll!testing::Test::Run() Line 2070    C++
     TestWTFLib.dll!testing::internal::TestInfoImpl::Run() Line 2318    C++
     TestWTFLib.dll!testing::TestCase::Run() Line 2421    C++
     TestWTFLib.dll!testing::internal::UnitTestImpl::RunAllTests() Line 4025    C++
     TestWTFLib.dll!testing::UnitTest::Run() Line 3677    C++
     TestWTFLib.dll!TestWebKitAPI::TestsController::run(int argc, char * * argv) Line 80    C++
     TestWTFLib.dll!main(int argc, char * * argv) Line 53    C++
     TestWTFLib.dll!dllLauncherEntryPoint(int argc, char * * argv) Line 60    C++
     TestWTF.exe!main(int argc, const char * * argv) Line 247    C++</pre>
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