[WIP][NotForLand] IDL dictionary support

Source/bindings/tests/idls/TestDictionary.idl

Index: Source/bindings/tests/idls/TestDictionary.idl
diff --git a/Source/bindings/tests/idls/TestDictionary.idl b/Source/bindings/tests/idls/TestDictionary.idl
new file mode 100644
index 0000000000000000000000000000000000000000..3ce775f5e1bf2f51b0e5bc9e539e547a683e35e9
--- /dev/null
+++ b/Source/bindings/tests/idls/TestDictionary.idl
@@ -0,0 +1,18 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+[
+    GarbageCollected,
+] dictionary TestDictionary {
+    boolean booleanMember;
+    long longMember = 1;
+    DOMString stringMember;
+    Node nodeMember;
+    TestInterface testInterfaceMember;
+    boolean? booleanOrNullMember = null;
+    TestInterface? testInterfaceOrNullMember;
+    DOMString? stringOrNullMember;
+    sequence<float> floatSequenceMember;
+    sequence<TestInterface> testInterfaceSequenceSequenceMember;
+    Node[] nodeArrayMember;
+};