Mark interop tests as failing on ff/win only

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 92 matching lines @@
 documentfragment_test: Fail
 element_test: Fail
 exceptions_test: Fail      # Uses webkitotifications, no analogue in moz
 indexeddb_1_test: Fail     # Need window.mozIndexedDB instead of window.webkitIndexedDB
 indexeddb_2_test: Fail     # Need window.mozIndexedDB instead of window.webkitIndexedDB
 indexeddb_3_test: Fail     # Need window.mozIndexedDB instead of window.webkitIndexedDB
 indexeddb_4_test: Fail     # Need window.mozIndexedDB instead of window.webkitIndexedDB
 instance_of_test: Fail     # Issue 2535
 # setup code fails. prepare. (DOM callback has errors) Caught [object Event]
 inner_frame_test: Skip
-js_interop_2_test: Pass, Fail  # Passes on Linux, Fails on Windows.
 localstorage_test: Fail
 # Interfaces not implemented: SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGStylable
 svg_3_test: Fail
 svgelement_test: Fail
 svgelement2_test: Fail
 transferables_test: Fail   # Issue 3392.
 typed_arrays_dataview_test: Fail  # DataView not implemented until Firefox 15.0
 # document.getElementsByTagName('body') returns an HTMLCollection, not a NodeList.
 #   TODO: Make both implement List<Node>, make implementation return List<Node>, not _NodeListJs.
 # Note this test now passes for the wrong reasons. It used to be that the only
 # forEach in this program was in NodeList. Due to dependencies from the unittest
 # framework, frog no longer resolves forEach statically, and instead it
 # dynamically binds forEach on a bunch of classes, including HTMLCollection.
 typing_test: Pass
 websocket_test: Pass, Fail # FF 10 is uses MozWebSocket, FF 11 uses WebSocket.
 # Exception... "Access to restricted URI denied" code: "1012" nsresult: "0x805303f4
 #    (NS_ERROR_DOM_BAD_URI) ...
 xhr_test: Fail
 
+[ $runtime == ff && $system == windows ]
+# TODO(vsm): Investigate why this is only failing on windows.
+js_interop_2_test: Fail
+
 [ $runtime == ie && ($system == linux || $system == macos) ]
 *: Skip
 
 [ $runtime == safari && ($system == linux || $system == windows) ]
 *: Skip
 
 [ $runtime == safari ]
 # TODO(vsm): Triage DOM failures.
 *: Skip
 
@@ skipping 57 matching lines @@
 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.
 indexeddb_3_test: Fail # Issue 3670.