[WIP][NotForLand] IDL dictionary support

Source/bindings/tests/idls/TestObject.idl

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
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  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 enum TestEnum {"", "EnumValue1", "EnumValue2", "EnumValue3"};
 
 callback VoidCallbackFunction = void ();
 callback AnyCallbackFunctionOptionalAnyArg = any (optional any optionalAnyArg);
 
-dictionary TestDict {
-    boolean booleanMember;
-    long longMember1 = 1;
-};
-
-dictionary TestDictDerived : TestDict {
-    unsigned short unsignedShortMember;
-    float floatMember4 = 4.0;
-};
-
 // No extended attributes on the interface; those go in TestInterface.idl
 interface TestObject {
     // Constants
     const unsigned short CONST_VALUE_0 = 0;
     const unsigned short CONST_VALUE_1 = 1;
     const unsigned short CONST_VALUE_2 = 2;
     const unsigned short CONST_VALUE_4 = 4;
     const unsigned short CONST_VALUE_8 = 8;
     const short CONST_VALUE_9 = -1;
     const DOMString CONST_VALUE_10 = "my constant string";
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     sequence<long>? nullableLongSequenceMethod();
     // Currently only used on interface type arguments
     void voidMethodTestInterfaceEmptyOrNullArg(TestInterfaceEmpty? nullableTestInterfaceEmptyArg);
     // Callback interface types
     void voidMethodTestCallbackInterfaceArg(TestCallbackInterface testCallbackInterfaceArg);
     void voidMethodOptionalTestCallbackInterfaceArg(optional TestCallbackInterface optionalTestCallbackInterfaceArg);
     void voidMethodTestCallbackInterfaceOrNullArg(TestCallbackInterface? testCallbackInterfaceArg);
     // Enumerations
     TestEnum testEnumMethod();
     void voidMethodTestEnumArg(TestEnum testEnumTypeArg);
+    // Dictionaries
+    TestDictionary testDictionaryMethod();
+    void voidMethodTestDictionaryArg(TestDictionary testDictionaryArg);
+    void voidMethodOptionalTestDictionaryArg(optional TestDictionary optionalTestDictionaryArg);
     // Exceptional types
     Dictionary dictionaryMethod();
     NodeFilter nodeFilterMethod();
     Promise promiseMethod();
     SerializedScriptValue serializedScriptValueMethod();
     XPathNSResolver xPathNSResolverMethod();
     void voidMethodDictionaryArg(Dictionary dictionaryArg);
     void voidMethodNodeFilterArg(NodeFilter nodeFilterArg);
     void voidMethodPromiseArg(Promise promiseArg);
     void voidMethodSerializedScriptValueArg(SerializedScriptValue serializedScriptValueArg);
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     [ImplementedInPrivateScript] short shortMethodWithShortArgumentImplementedInPrivateScript(short value);
     [ImplementedInPrivateScript] DOMString stringMethodWithStringArgumentImplementedInPrivateScript(DOMString value);
     [ImplementedInPrivateScript] Node nodeMethodWithNodeArgumentImplementedInPrivateScript(Node value);
     [ImplementedInPrivateScript] Node nodeMethodWithVariousArgumentsImplementedInPrivateScript(Document document, Node node, short value1, double value2, DOMString string);
     [ImplementedInPrivateScript] readonly attribute short readonlyShortAttribute;
     [ImplementedInPrivateScript] attribute short shortAttribute;
     [ImplementedInPrivateScript] attribute DOMString stringAttribute;
     [ImplementedInPrivateScript] attribute Node nodeAttribute;
 
 };