IDL: Add support for [Unscopeable] on attributes and methods

Source/bindings/tests/results/core/V8ArrayBuffer.cpp

Index: Source/bindings/tests/results/core/V8ArrayBuffer.cpp
diff --git a/Source/bindings/tests/results/core/V8ArrayBuffer.cpp b/Source/bindings/tests/results/core/V8ArrayBuffer.cpp
index 0721b51c98cbf2a55d34a48261c5831dc98ddf3e..4157aa78361040027a6c24f2324f3b7a2447925a 100644
--- a/Source/bindings/tests/results/core/V8ArrayBuffer.cpp
+++ b/Source/bindings/tests/results/core/V8ArrayBuffer.cpp
@@ -21,7 +21,7 @@
 
 namespace blink {
 
-const WrapperTypeInfo V8ArrayBuffer::wrapperTypeInfo = { gin::kEmbedderBlink, 0, V8ArrayBuffer::refObject, V8ArrayBuffer::derefObject, V8ArrayBuffer::trace, 0, 0, V8ArrayBuffer::installConditionallyEnabledMethods, V8ArrayBuffer::installConditionallyEnabledProperties, "ArrayBuffer", 0, WrapperTypeInfo::WrapperTypeObjectPrototype, WrapperTypeInfo::ObjectClassId, WrapperTypeInfo::NotInheritFromEventTarget, WrapperTypeInfo::Independent, WrapperTypeInfo::RefCountedObject };
+const WrapperTypeInfo V8ArrayBuffer::wrapperTypeInfo = { gin::kEmbedderBlink, 0, V8ArrayBuffer::refObject, V8ArrayBuffer::derefObject, V8ArrayBuffer::trace, 0, 0, V8ArrayBuffer::preparePrototypeObject, V8ArrayBuffer::installConditionallyEnabledProperties, "ArrayBuffer", 0, WrapperTypeInfo::WrapperTypeObjectPrototype, WrapperTypeInfo::ObjectClassId, WrapperTypeInfo::NotInheritFromEventTarget, WrapperTypeInfo::Independent, WrapperTypeInfo::RefCountedObject };
 
 // This static member must be declared by DEFINE_WRAPPERTYPEINFO in TestArrayBuffer.h.
 // For details, see the comment of DEFINE_WRAPPERTYPEINFO in