Skeleton typedef type implementation

tests/html/html.status

 # Copyright (c) 2012, 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.
 
 event_test: Skip  # Issue 1996
 webgl_1_test: Skip  # Issue 1495
 xmldocument_test: Skip  # XML in dart:html is incomplete
 xmlelement_test: Skip  # XML in dart:html is incomplete
 measurement_test: Pass, Fail  # Issue 1940
 
@@ skipping 14 matching lines @@
 css_test: Fail # Issue 4517
 htmlaudioelement_test: Fail # Issue 4517
 indexeddb_2_test: Fail  # Issue 1883 - IndexedDB methods don't handle maps correctly.
 
 [ $compiler == none && $runtime == drt && $system == macos]
 audiocontext_test: Pass, Fail
 
 [ $compiler == none && $runtime == drt && $system == linux]
 documentfragment_test: Pass, Timeout
 
-[ $runtime == ie || $runtime == safari || $runtime == ff || $runtime == chrome || $runtime == opera ]
+[ $runtime == ie || $runtime == safari || $runtime == ff || $runtime == chrome || $runtime == opera || $runtime == drt ]
 # TODO(vsm): Triage DOM tests.
 indexeddb_2_test: Fail  # Issue 1883 - IndexedDB methods don't handle maps correctly.
 htmloptionscollection_test: Fail # Issue 3813.
 shadow_dom_test: Skip # No ShadowDOM support except on tip dartium.
 shadow_dom_layout_test: Skip
 unknownelement_test: Fail # Issue 4189
 
 [ $runtime == dartium || $runtime == chrome || $runtime == ie || $runtime == safari || $runtime == ff || $runtime == opera ]
 history_test: Fail
 
@@ skipping 146 matching lines @@
 isolates_test: Skip   # Timeout because leg does not support web workers.
 typed_arrays_1_test: Fail # dart2js doesn't support is checks with generic types.
 
 [ $compiler == dart2js && $runtime == ff && $system == linux]
 canvas_pixel_array_type_alias_test: Fail # Expectation: CreateImageData. Caught NoSuchMethodException : method not found: 'get$data'
 indexeddb_3_test: Fail  # Caught Error: DATA_ERR: DOM IDBDatabase Exception 5 Error: The data provided does not meet the requirements of the function.
 instance_of_test: Fail     # Issue 2535
 localstorage_test: Fail
 mutationobserver_test: Fail  #  Bots have FF 13, will pass on FF 14.
 
-[ $compiler == dart2js && ($runtime == drt || $runtime == ff) && $system == linux]
-# DOM errors.
-indexeddb_2_test: Fail # Uncaught error
-
 [ $compiler == dart2js && $runtime == chrome && $system == macos ]
 fileapi_test: Skip # Issue 3022
 
 [ $compiler == dart2js && $runtime == ff ]
 cache_test: Fail # Expectation: ApplicationCache. Caught NoSuchMethodException : method not found: 'get$status'
 xhr_test: Skip # Timeout
 inner_frame_test: Skip # Timeout
 svg_3_test: Skip # Timeout
 documentfragment_test: Skip # Timeout
 fileapi_test: Skip # Issue 3022
 
 [ $compiler == dart2js && $runtime == chrome && $system == windows]
 css_test: Pass, Fail # Issue #2823
 fileapi_test: Skip # Issue 3022
 
 [ $compiler == dart2js && $runtime == drt && $system == macos ]
 indexeddb_2_test: Fail # Issue 3669.