bindings: Supports [Replaceable] accessors.

Source/bindings/tests/idls/core/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
@@ skipping 221 matching lines @@
     // Limited value attributes and enumerated attributes
     [Reflect, ReflectOnly="unique"] attribute DOMString limitedToOnlyOneAttribute;
     [Reflect, ReflectOnly=("Per","Paal","Espen")] attribute DOMString limitedToOnlyAttribute;
     [Reflect=other, ReflectOnly=("Value1","Value2")] attribute DOMString limitedToOnlyOtherAttribute;
     [Reflect, ReflectOnly=("rsa","dsa"), ReflectMissing="rsa"] attribute DOMString limitedWithMissingDefaultAttribute;
     [Reflect, ReflectOnly=("ltr","rtl","auto"), ReflectMissing="auto", ReflectInvalid="ltr"] attribute DOMString limitedWithInvalidMissingDefaultAttribute;
     [Reflect, ReflectOnly=("anonymous","use-credentials"), ReflectEmpty="anonymous", ReflectInvalid="anonymous"] readonly attribute DOMString corsSettingAttribute;
     [Reflect, ReflectOnly=("empty","missing","invalid","a-normal"), ReflectEmpty="empty", ReflectMissing="missing", ReflectInvalid="invalid"] readonly attribute DOMString limitedWithEmptyMissingInvalidAttribute;
 
     [Replaceable] readonly attribute long replaceableReadonlyLongAttribute;
+    [Replaceable, ExposeJSAccessors] readonly attribute long replaceableReadonlyLongAccessor;
     [PutForwards=href] readonly attribute TestNode locationPutForwards;
     [RuntimeEnabled=FeatureName] attribute long runtimeEnabledLongAttribute;
     [PerContextEnabled=FeatureName, RuntimeEnabled=FeatureName] attribute long perContextEnabledRuntimeEnabledLongAttribute;
     [Conditional=CONDITION, RuntimeEnabled=FeatureName] attribute long conditionalRuntimeEnabledLongAttribute;
     [SetterCallWith=(ActiveWindow,FirstWindow)] attribute DOMString setterCallWithActiveWindowAndFirstWindowStringAttribute;
     [SetterCallWith=ExecutionContext] attribute DOMString setterCallWithExecutionContextStringAttribute;
     [TreatNullAs=EmptyString] attribute DOMString treatNullAsEmptyStringStringAttribute;
     [TreatNullAs=NullString] attribute DOMString treatNullAsNullStringStringAttribute;
     [TreatReturnedNullStringAs=Null] attribute DOMString treatReturnedNullStringAsNullStringAttribute;
     [TreatReturnedNullStringAs=Undefined] attribute DOMString treatReturnedNullStringAsUndefinedStringAttribute;
@@ skipping 328 matching lines @@
     [ImplementedInPrivateScript] attribute DOMString stringAttribute;
     [ImplementedInPrivateScript] attribute Node nodeAttribute;
     [OnlyExposedToPrivateScript] short methodImplementedInCPPForPrivateScriptOnly(short value1, short value2);
     [OnlyExposedToPrivateScript] attribute DOMString attributeImplementedInCPPForPrivateScriptOnly;
     [ImplementedInPrivateScript, OnlyExposedToPrivateScript] short methodForPrivateScriptOnly(short value1, short value2);
     [ImplementedInPrivateScript, OnlyExposedToPrivateScript] attribute DOMString attributeForPrivateScriptOnly;
     [ImplementedInPrivateScript] attribute TestEnum enumForPrivateScript;
 
     maplike<long, DOMStringOrDouble>;
 };