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

Source/bindings/tests/results/core/V8TestNode.cpp

Index: Source/bindings/tests/results/core/V8TestNode.cpp
diff --git a/Source/bindings/tests/results/core/V8TestNode.cpp b/Source/bindings/tests/results/core/V8TestNode.cpp
index 623abe214f954d5205503c1b0439f48193759013..320c91fc97021ef3cca6ed36b97f3e13f31cba18 100644
--- a/Source/bindings/tests/results/core/V8TestNode.cpp
+++ b/Source/bindings/tests/results/core/V8TestNode.cpp
@@ -20,7 +20,7 @@
 
 namespace blink {
 
-const WrapperTypeInfo V8TestNode::wrapperTypeInfo = { gin::kEmbedderBlink, V8TestNode::domTemplate, V8TestNode::refObject, V8TestNode::derefObject, V8TestNode::trace, 0, 0, V8TestNode::installConditionallyEnabledMethods, V8TestNode::installConditionallyEnabledProperties, "TestNode", &V8Node::wrapperTypeInfo, WrapperTypeInfo::WrapperTypeObjectPrototype, WrapperTypeInfo::NodeClassId, WrapperTypeInfo::InheritFromEventTarget, WrapperTypeInfo::Dependent, WrapperTypeInfo::WillBeGarbageCollectedObject };
+const WrapperTypeInfo V8TestNode::wrapperTypeInfo = { gin::kEmbedderBlink, V8TestNode::domTemplate, V8TestNode::refObject, V8TestNode::derefObject, V8TestNode::trace, 0, 0, V8TestNode::preparePrototypeObject, V8TestNode::installConditionallyEnabledProperties, "TestNode", &V8Node::wrapperTypeInfo, WrapperTypeInfo::WrapperTypeObjectPrototype, WrapperTypeInfo::NodeClassId, WrapperTypeInfo::InheritFromEventTarget, WrapperTypeInfo::Dependent, WrapperTypeInfo::WillBeGarbageCollectedObject };
 
 // This static member must be declared by DEFINE_WRAPPERTYPEINFO in TestNode.h.
 // For details, see the comment of DEFINE_WRAPPERTYPEINFO in