how angular-es6 inheritance should be provided?

Nobody has claimed this yet.

Parent-child relationship between controllers, directives.
In es5-angular these relationship are implemented using scope and scope inheritance.
Now we use classes, extends, super methods.

But my problem is when I create directive class and then controller class that uses some data from directive class, controller class will be a child of directive class, but in this case directive class constructor will be called 2 times, so I got an error : Multiple directives [searchBar (module: ontour), searchBar (module: ontour)] asking for template on.

It's a big question, i can't find any examples of it in this boilerplate and articles on web.

No files or tests are named. Start by locating the boilerplate's directive and controller definitions, then compare their ES5 scope-inheritance usage with the ES6 class and constructor behavior described here. The issue does not define a chosen inheritance design or a clear completion test, so the expected result would need to be agreed before implementation.

Written by the indexing model from the issue text.