Add a test on event with colon in the name

[just-boris]

There is a known issue with Angular and material-components-web: https://github.com/material-components/material-components-web/issues/4221

Angular template syntax uses colon as a special behavior and event with colon in the name do not work. This naming convention is pretty common and goes back to jQueryUI custom events names.

I believe it is important enough to be reflected in the test cases