Add back localName and improve toString for Html nodes.

tests/html/node_test.dart

Index: tests/html/node_test.dart
diff --git a/tests/html/node_test.dart b/tests/html/node_test.dart
index 598899d56109d49fbb206017fc0f7bb8ddd456f3..b2c83997436eb8692beb616fcb225ae23553f0bd 100644
--- a/tests/html/node_test.dart
+++ b/tests/html/node_test.dart
@@ -30,8 +30,7 @@ main() {
       final nodes = makeNodeWithChildren();
       // TODO(efortuna): Update this test when you have actual toString methods
       // for the items in the node List as well.
-      expect(nodes.nodes.toString(), "[Instance of 'Text', BR, "
-          "Instance of 'Comment']");
+      expect(nodes.nodes.toString(), "[Foo, br, baz]");
       final node = makeNode();
       expect(node.nodes.toString(), '[]');
     });