[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..0d56a74fe2ccf7470bf7745604ac24e50166fd88
--- /dev/null
+++ b/Source/bindings/tests/idls/TestDictionary.idl
@@ -0,0 +1,19 @@
+// 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;
+    // FIXME: Support Nullable.
+    // boolean? booleanOrNullMember;
+    // TestInterface? testInterfaceOrNullMember;
+    // FIXME: Support arrays and sequences.
+    // DOMString[] stringArrayMember;
+    // Node[] nodeArrayMember;
+    // sequence<TestInterface> sequenceTestInterfaceMember;
+};