Bug: XML View can't find controller extension methods

[ClementRoyer]

Describe the bug When using a controller extension method in an XML View I receive this error:

Event handler "HistoryView.onItemPress" not found in "xx.xxx.xx.xxxx.Customer.controller.App".TagAttributeLinter(UI5plugin)

Is it simply not supported or is this a bug ?

To Reproduce Steps to reproduce the behaviour:

1. Create blank application
2. Create an extension controller
3. Add this extension controller to your "App.controller.js"
4. In your App.view.xml, use your controller extension method in press event
5. See error

Screenshots

Error:

App.controller.js

Base.controller.js

HistoryView.js