Expand overloaded methods and optional parameters in the html library.

tools/dom/templates/html/impl/impl_AudioNode.darttemplate

Index: tools/dom/templates/html/impl/impl_AudioNode.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_AudioNode.darttemplate b/tools/dom/templates/html/impl/impl_AudioNode.darttemplate
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index 0000000000000000000000000000000000000000..ec6ee5db1cdc1e7992051fb1a1a2a284429f73ec
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+++ b/tools/dom/templates/html/impl/impl_AudioNode.darttemplate
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+// 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.
+
+part of web_audio;
+
+$(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
+$!MEMBERS
+  @DomName('AudioNode.connect')
+  void connectNode(AudioNode destination, [int output = 0, int input = 0]) =>
+      $dom_connect(destination, output, input);
+
+  @DomName('AudioNode.connect')
+  void connectParam(AudioParam destination, [int output = 0]) =>
+      $dom_connect(destination, output);
+}