Fixing core exception tests after Chrome update.

sdk/lib/_internal/compiler/implementation/lib/js_helper.dart

 // 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.
 
 library _js_helper;
 
 import 'dart:collection';
 
 part 'constant_map.dart';
 part 'native_helper.dart';
@@ skipping 998 matching lines @@
     }
 
     var ieErrorCode = JS('int', '#.number & 0xffff', ex);
     var ieFacilityNumber = JS('int', '#.number>>16 & 0x1FFF', ex);
     // If we cannot use [type] to determine what kind of exception
     // we're dealing with we fall back on looking at the exception
     // message if it is available and a string.
     if (message is String) {
       if (message.endsWith('is null') ||
           message.endsWith('is undefined') ||
-          message.endsWith('is null or undefined')) {
+          message.endsWith('is null or undefined') ||
+          message.endsWith('of null')) {
         return new NoSuchMethodError(null, '<unknown>', [], {});
       } else if (contains(message, ' has no method ') ||
                  contains(message, ' is not a function') ||
                  (ieErrorCode == 438 && ieFacilityNumber == 10)) {
         // Examples:
         //  x.foo is not a function
         //  'undefined' is not a function (evaluating 'x.foo(1,2,3)')
         // Object doesn't support property or method 'foo' which sets the error
         // code 438 in IE.
         // TODO(kasperl): Compute the right name if possible.
@@ skipping 677 matching lines @@
   if (len != t.length) return false;
   for (int i = 1; i < len; i++) {
     if (!isSubtype(s[i], t[i])) {
       return false;
     }
   }
   return true;
 }
 
 createRuntimeType(String name) => new TypeImpl(name);