**Description of the issue** <!-- Please explain briefly what is the problem. If it is about a GitHub project, please include its URL. --> It should be possible to use the `Instance` access path component to match objects based on their abstract class For example, it would allow accessing `req` in the following code ```Javascript import cds from '@sap/cds' class SampleVulnService extends cds.ApplicationService { init(){ this.on ('submitOrder', async req => { const {book,quantity} = req.data ``` with the path ``` ["@sap/cds", "Member[ApplicationService].Instance.Member[on].Argument[1].Parameter[0]", "remote"] ```