Fix failing tests.

test/unit/attributes-elements.html

@@ -114,7 +114,7 @@
 
 <dom-module id="x-compose">
   <template>
-    <x-basic id="basic"></x-basic>
+    <x-basic id="basic" class="should-not-override"></x-basic>
   </template>
 </dom-module>
 <script>

test/unit/attributes.html

@@ -279,10 +279,7 @@ suite('hostAttributes', function() {
     assert.notOk(compose.$.basic.classList.contains('foo'));
     assert.notOk(compose.$.basic.classList.contains('bar'));
     assert.notOk(compose.$.basic.classList.contains('baz'));
-    if (!Polymer.Settings.useNativeShadow) {
-      assert(compose.$.basic.classList.contains('style-scope'));
-      assert(compose.$.basic.classList.contains('x-compose'));
-    }
+    assert(compose.$.basic.classList.contains('should-not-override'));
   });
 
 });

test/unit/bind.html

@@ -175,9 +175,11 @@ suite('single-element binding effects', function() {
   });
 
   test('annotated dataset attribute binding', function() {
-    el.dataSetId = 'yeah';
-    assert.equal(el.$.boundChild.dataset.id, 'yeah', 'dataset.id dataset property not set correctly');
-    assert.equal(el.$.boundChild.getAttribute('data-id'), 'yeah', 'data-id attribute not set correctly');
+    if (el.$.boundChild.datast) {  // IE10, sigh
+      el.dataSetId = 'yeah';
+      assert.equal(el.$.boundChild.dataset.id, 'yeah', 'dataset.id dataset property not set correctly');
+      assert.equal(el.$.boundChild.getAttribute('data-id'), 'yeah', 'data-id attribute not set correctly');
+    }
   });
 
   test('custom notification event to property', function() {

test/unit/styling-scoped-elements.html

@@ -121,7 +121,7 @@
     <div id="computed" class$="{{computeClass(aClass)}}">Computed</div>
     <div id="repeatContainer">
       <template id="repeat" is="x-repeat" items="{{items}}">
-        <a class$="{{parent.aaClass}}">A Computed</a>
+        <a class$="{{aaClass}}">A Computed</a>
       </template>
     </div>
   </template>