ClassNode isRecord and isSealed not useful before AST transformation

The new to Groovy 4 methods ClassNode#isRecord and ClassNode#isSealed do not work for a node that has not yet been processed by the record/sealed transform or in some cases ResolveVisitor. And they do not work for a node that is a reference to a record or sealed type.

For these reasons, I request that the methods be moved to ClassNodeUtils with some extra notes or made private within classgen somewhere.