Clicking on code inside a decorator doesn't highlight that part of the AST

Hello,

FIrst of all thanks so much for ASTExplorer. It's such a great tool and as an eslint-plugin developer I use it a lot and appreciate the work.

I recently ran into an issue that I want to write some eslint rules for a home-grown library that we use solely within decorators (kind of like @connect). But I found out that selecting part of the code inside the decorator doesn't highlight the relevant part in the AST like it does with normal code.

Here is an example:

https://astexplorer.net/#/gist/1733789f1377e41502e844b2f9ac5a6d/87e23677115df42e7a3a1398b0ef609b6869daaf

* When I click "Test" from "Class Test extends Component" then the part of the AST gets highlighted
* When I click on "actions.finish$" in the decorator, then the AST doesn't get highlighted and jumps to the top

I'd love to help out with fixing this if it's not too hard 😄 If you can give me some pointers where to look then I'd gladly help.