Shrink AOT snapshot size and memory usage.

runtime/observatory/lib/src/elements/function_view.dart

 // Copyright (c) 2013, 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.
 
 library function_view_element;
 
 import 'dart:async';
 import 'dart:html';
 import 'package:observatory/models.dart' as M;
 import 'package:observatory/src/elements/class_ref.dart';
@@ skipping 255 matching lines @@
                                    queue: _r.queue),
                 new SpanElement()
                   ..title = 'This count is used to determine when a function '
                              'will be optimized.  It is a combination of call '
                              'counts and other factors.'
                   ..text = ' (usage count: ${function.usageCounter })'
               ]
           ]
       );
     }
+    members.add(
+      new DivElement()
+        ..classes = ['memberItem']
+        ..text = ' ');
+
+    if (_function.icDataArray != null) {
+      members.add(
+        new DivElement()
+          ..classes = ['memberItem']
+          ..children = [
+            new DivElement()
+              ..classes = ['memberName']
+              ..text = 'ic data array',
+            new DivElement()
+              ..classes = ['memberName']
+              ..children = [
+                new InstanceRefElement(_isolate, _function.icDataArray,
+                                       _instances, queue: _r.queue)
+              ]
+          ]
+      );
+    }
+
     members.addAll([
       new DivElement()..classes = ['memberItem']
-        ..text = ' ',
-      new DivElement()..classes = ['memberItem']
-        ..children = [
-          new DivElement()..classes = ['memberName']
-            ..text = 'ic data array',
-          new DivElement()..classes = ['memberName']
-            ..children = [
-              new InstanceRefElement(_isolate, _function.icDataArray,
-                                     _instances, queue: _r.queue)
-            ]
-        ],
-      new DivElement()..classes = ['memberItem']
         ..children = [
           new DivElement()..classes = ['memberName']
             ..text = 'deoptimizations',
           new DivElement()..classes = ['memberName']
             ..text = '${_function.deoptimizations}'
         ],
       new DivElement()..classes = ['memberItem']
         ..children = [
           new DivElement()..classes = ['memberName']
             ..text = 'optimizable',
@@ skipping 84 matching lines @@
       case M.FunctionKind.stub:
         return 'stub';
       case M.FunctionKind.tag:
         return 'tag';
       case M.FunctionKind.signatureFunction:
         return 'signature function';
     }
     throw new Exception('Unknown Functionkind ($kind)');
   }
 }