Misc Observatory tweaks.

runtime/observatory/lib/src/elements/nav/isolate_menu.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:html';
 import 'dart:async';
 import 'package:observatory/models.dart' as M show IsolateRef, EventRepository;
 import 'package:observatory/src/elements/helpers/nav_menu.dart';
 import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
@@ skipping 61 matching lines @@
       new NavMenuItemElement('debugger',
           queue: _r.queue, link: Uris.debugger(isolate)),
       new NavMenuItemElement('class hierarchy',
           queue: _r.queue, link: Uris.classTree(isolate)),
       new NavMenuItemElement('cpu profile',
           queue: _r.queue, link: Uris.cpuProfiler(isolate)),
       new NavMenuItemElement('cpu profile (table)',
           queue: _r.queue, link: Uris.cpuProfilerTable(isolate)),
       new NavMenuItemElement('allocation profile',
           queue: _r.queue, link: Uris.allocationProfiler(isolate)),
+      new NavMenuItemElement('heap snapshot',
+          queue: _r.queue, link: Uris.heapSnapshot(isolate)),
       new NavMenuItemElement('heap map',
           queue: _r.queue, link: Uris.heapMap(isolate)),
       new NavMenuItemElement('metrics',
           queue: _r.queue, link: Uris.metrics(isolate)),
-      new NavMenuItemElement('heap snapshot',
-          queue: _r.queue, link: Uris.heapSnapshot(isolate)),
       new NavMenuItemElement('persistent handles',
           queue: _r.queue, link: Uris.persistentHandles(isolate)),
       new NavMenuItemElement('ports',
           queue: _r.queue, link: Uris.ports(isolate)),
       new NavMenuItemElement('logging',
           queue: _r.queue, link: Uris.logging(isolate)),
     ]..addAll(_content);
     children = [
       navMenu(isolate.name, content: content, link: Uris.inspect(isolate))
     ];
   }
 }