Improve display of library dependency information.

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

 <link rel="import" href="../../../../packages/polymer/polymer.html">
 <link rel="import" href="class_ref.html">
 <link rel="import" href="curly_block.html">
 <link rel="import" href="eval_box.html">
 <link rel="import" href="field_ref.html">
 <link rel="import" href="function_ref.html">
 <link rel="import" href="instance_ref.html">
 <link rel="import" href="observatory_element.html">
 <link rel="import" href="library_ref.html">
 <link rel="import" href="nav_bar.html">
@@ skipping 41 matching lines @@
     <hr>
 
     <div class="content">
       <template if="{{ library.dependencies.isNotEmpty }}">
         dependencies ({{ library.dependencies.length }})
         <curly-block expand="{{ library.dependencies.length <= 8 }}">
           <div class="memberList">
             <template repeat="{{ dep in library.dependencies }}">
               <div class="memberItem">
                 <div class="memberValue">
-                  <library-ref ref="{{ dep.target }}"></library-ref>
+                  <template if="{{ dep.isImport }}">
+                    import <library-ref ref="{{ dep.target }}"></library-ref>
+                    <template if="{{ dep.prefix != null }}">
+                      as {{ dep.prefix.toString() }}
+                    </template>
+                    <template if="{{ dep.isDeferred }}">
+                      deferred
+                    </template>
+                  </template>
+                  <template if="{{ !dep.isImport }}">
+                    export <library-ref ref="{{ dep.target }}"></library-ref>
+                  </template>
                 </div>
               </div>
             </template>
           </div>
         </curly-block><br>
         <br>
       </template>
 
       <template if="{{ library.scripts.isNotEmpty }}">
         scripts ({{ library.scripts.length }})
@@ skipping 63 matching lines @@
         </curly-block><br>
         <br>
       </template>
     </div>
 
     <view-footer></view-footer>
  </template>
 </polymer-element>
 
 <script type="application/dart" src="library_view.dart"></script>