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

Source/bindings/tests/results/core/V8TestException.cpp

Index: Source/bindings/tests/results/core/V8TestException.cpp
diff --git a/Source/bindings/tests/results/core/V8TestException.cpp b/Source/bindings/tests/results/core/V8TestException.cpp
index 4db3b5ce0cee6a2d53349672ac8b498bd826cf05..961baee98d13f649823eb4d051085d00c4e30c58 100644
--- a/Source/bindings/tests/results/core/V8TestException.cpp
+++ b/Source/bindings/tests/results/core/V8TestException.cpp
@@ -19,7 +19,7 @@
 
 namespace blink {
 
-const WrapperTypeInfo V8TestException::wrapperTypeInfo = { gin::kEmbedderBlink, V8TestException::domTemplate, V8TestException::refObject, V8TestException::derefObject, V8TestException::trace, 0, 0, V8TestException::installConditionallyEnabledMethods, V8TestException::installConditionallyEnabledProperties, "TestException", 0, WrapperTypeInfo::WrapperTypeExceptionPrototype, WrapperTypeInfo::ObjectClassId, WrapperTypeInfo::NotInheritFromEventTarget, WrapperTypeInfo::Independent, WrapperTypeInfo::RefCountedObject };
+const WrapperTypeInfo V8TestException::wrapperTypeInfo = { gin::kEmbedderBlink, V8TestException::domTemplate, V8TestException::refObject, V8TestException::derefObject, V8TestException::trace, 0, 0, V8TestException::preparePrototypeObject, V8TestException::installConditionallyEnabledProperties, "TestException", 0, WrapperTypeInfo::WrapperTypeExceptionPrototype, WrapperTypeInfo::ObjectClassId, WrapperTypeInfo::NotInheritFromEventTarget, WrapperTypeInfo::Independent, WrapperTypeInfo::RefCountedObject };
 
 // This static member must be declared by DEFINE_WRAPPERTYPEINFO in TestException.h.
 // For details, see the comment of DEFINE_WRAPPERTYPEINFO in