typo: association -> associations

runtime/observatory/lib/src/elements/instance_ref.html

 <link rel="import" href="../../../../packages/polymer/polymer.html">
 <link rel="import" href="curly_block.html">
 <link rel="import" href="observatory_element.html">
 <link rel="import" href="service_ref.html">
 
 <polymer-element name="instance-ref" extends="service-ref">
   <template>
     <link rel="stylesheet" href="css/shared.css">
     <style>
       .indented {
@@ skipping 88 matching lines @@
         <curly-block callback="{{ expander() }}" expandKey="{{ expandKey }}">
           <div class="indented">
             <template repeat="{{ association in ref.associations }}">
               [ <any-service-ref ref="{{ association['key'] }}"
                                 expandKey="{{ makeExpandKey('key') }}">
               </any-service-ref> ]&nbsp;&nbsp;
               <any-service-ref ref="{{ association['value'] }}"
                                  expandKey="{{ makeExpandKey('value') }}">
               </any-service-ref><br>
             </template>
-            <template if="{{ ref.length != ref.association.length }}">
-              <div><em>{{ ref.length - ref.association.length }} omitted association</em></div>
+            <template if="{{ ref.length != ref.associations.length }}">
+              <div><em>{{ ref.length - ref.associations.length }} omitted associations</em></div>
             </template>
           </div>
         </curly-block>
       </template>
 
       <template if="{{ ref.isTypedData }}">
         <a on-click="{{ goto }}" _href="{{ url }}"><em>{{ ref.clazz.name }}</em> ({{ ref.length }})</a>
         <curly-block callback="{{ expander() }}" expandKey="{{ expandKey }}">
           <div class="indented">
             <template repeat="{{ index in ref.typedElements.asMap().keys }}">
@@ skipping 32 matching lines @@
                              expandKey="{{ makeExpandKey('value') }}">
             </any-service-ref><br>
           </div>
         </curly-block>
       </template>
     </span>
   </template>
 </polymer-element>
 
 <script type="application/dart" src="instance_ref.dart"></script>