IDL: Generate all constructor callbacks with the same template macro

Source/bindings/tests/results/V8TestInterfaceNamedConstructor.cpp

Index: Source/bindings/tests/results/V8TestInterfaceNamedConstructor.cpp
diff --git a/Source/bindings/tests/results/V8TestInterfaceNamedConstructor.cpp b/Source/bindings/tests/results/V8TestInterfaceNamedConstructor.cpp
index 9f504ddbffb9e9906178dce43147525825014bbf..3c632f735ef185ea288900ee56b9ad9bf005df44 100644
--- a/Source/bindings/tests/results/V8TestInterfaceNamedConstructor.cpp
+++ b/Source/bindings/tests/results/V8TestInterfaceNamedConstructor.cpp
@@ -84,9 +84,6 @@ static void V8TestInterfaceNamedConstructorConstructorCallback(const v8::Functio
         v8SetReturnValue(info, info.Holder());
         return;
     }
-
-    Document& document = *toDocument(currentExecutionContext(isolate));
-
     ExceptionState exceptionState(ExceptionState::ConstructionContext, "TestInterfaceNamedConstructor", info.Holder(), isolate);
     if (UNLIKELY(info.Length() < 1)) {
         throwMinimumArityTypeError(exceptionState, 1, info.Length());
@@ -119,6 +116,7 @@ static void V8TestInterfaceNamedConstructorConstructorCallback(const v8::Functio
         }
         TOSTRING_VOID_INTERNAL(optionalStringArg, info[5]);
     }
+    Document& document = *toDocument(currentExecutionContext(isolate));
     RefPtr<TestInterfaceNamedConstructor> impl = TestInterfaceNamedConstructor::createForJSConstructor(document, stringArg, defaultUndefinedOptionalBooleanArg, defaultUndefinedOptionalLongArg, defaultUndefinedOptionalStringArg, defaultNullStringOptionalstringArg, optionalStringArg, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;