Provide a logical view of VM-internal maps in Observatory.

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

Index: runtime/observatory/lib/src/elements/instance_view.html
diff --git a/runtime/observatory/lib/src/elements/instance_view.html b/runtime/observatory/lib/src/elements/instance_view.html
index 2745e9b27ed5c8cd364ca931bd0cbb83a412c58d..cbd85cad88c8d67b7973287f15804316a064b218 100644
--- a/runtime/observatory/lib/src/elements/instance_view.html
+++ b/runtime/observatory/lib/src/elements/instance_view.html
@@ -179,6 +179,25 @@
             </div>
           </curly-block><br><br>
         </template>
+
+        <template if="{{ instance.associations.isNotEmpty }}">
+          associations ({{ instance.elements.length }})
+          <curly-block expand="{{ instance.associations.length <= 8 }}">
+            <div class="memberList">
+              <template repeat="{{ association in instance.associations }}">
+                <div class="memberItem">
+                  <div class="memberValue">
+                    [<any-service-ref ref="{{ association['key'] }}"></any-service-ref>]
+                  </div>
+                  <div class="memberValue">
+                    <any-service-ref ref="{{ association['value'] }}"></any-service-ref>
+                  </div>
+                </div>
+              </template>
+            </div>
+          </curly-block><br><br>
+        </template>
+
       </div>
 
     </template>