eId in debug mode', () => {             let descriptor;             let node;              env.opts.debug = true;             node = astNode.addNodeProperties({});             descriptor = Object.getOwnPropertyDescriptor(node, 'enclosingScopeId');              expect(descriptor).toBeObject();             expect(descriptor.enumerable).toBeTrue();         });          it('should provide a null enclosingScopeId in debug mode for nodes with 