static Node expectAndSkipNode(IdlModelLoader loader) {
        return expectAndSkipNode(loader, loader.getTokenizer().getCurrentTokenLocation());
    }
Expects that the current token is a valid Node, and parses it into a {@link Node} value.

<p>The tokenizer is advanced to the next token after parsing the Node value.</p>

@param loader IDL parser.
@return Returns the parsed node value.
@throws ModelSyntaxException if the Node is not well-formed.
smithy-model/src/main/java/software/amazon/smithy/model/loader/IdlNodeParser.java