Show object pool on code page

runtime/bin/vmservice/client/lib/src/elements/code_view.html

 <link rel="import" href="function_ref.html">
 <link rel="import" href="observatory_element.html">
 <link rel="import" href="nav_bar.html">
 <polymer-element name="code-view" extends="observatory-element">
   <template>
     <nav-bar>
       <top-nav-menu></top-nav-menu>
       <isolate-nav-menu isolate="{{ code.isolate }}"></isolate-nav-menu>
       <nav-menu link="." anchor="{{ code.name }}" last="{{ true }}"></nav-menu>
       <nav-refresh callback="{{ refresh }}"></nav-refresh>
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           </td>
         </tr>
         <tr>
           <td class="memberHeader">Inclusive</td>
           <td class="member">{{ code.formattedInclusiveTicks }}</td>
         </tr>
         <tr>
           <td class="memberHeader">Exclusive</td>
           <td class="member">{{ code.formattedExclusiveTicks }}</td>
         </tr>
+        <tr>
+          <td class="memberHeader">Constant object pool</td>
+          <td class="member">
+            <instance-ref ref="{{ code.objectPool }}"></instance-ref>
+          </td>
+        </tr>
       </table>
     </div>
     <hr>
     <div class="content">
       <template if="{{ code.hasDisassembly }}">
         <div class="row">
             <div class="col-md-2 memberHeader">Inclusive</div>
             <div class="col-md-2 memberHeader">Exclusive</div>
             <div class="col-md-2 memberHeader">Address</div>
             <div class="col-md-6 memberHeader">Disassembly</div>
         </div>
       </template>
       <template repeat="{{ instruction in code.instructions }}">
         <div class="row">
           <div class="col-md-2 monospace">{{ instruction.formattedInclusive(code) }}</div>
           <div class="col-md-2 monospace">{{ instruction.formattedExclusive(code) }}</div>
           <div class="col-md-2 monospace">{{ instruction.formattedAddress() }}</div>
           <div class="col-md-6 monospace">{{ instruction.human }}</div>
         </div>
       </template>
     </div>
   </template>
   <script type="application/dart" src="code_view.dart"></script>
 </polymer-element>