Feature Request Support for warnings (non-critical tests)

Would it be possible to add a test result that indicates a non-critical or somewhat optional property? For example, we are validating the content of scenes in our game. Some prefabs must always be present and therefore a test either fails or passes when checking for their presence. However, sometimes, there are fuzzy rules such as "no duplicates". These duplicates should be removed just to keep things clean, but they do not break anything (non-critical). At the moment, this check for duplication test shows dozens of red failure icons, which looks as if something is broken, when it isn't. I'd rather show a warning sign to indicate that this is something that needs to be addressed in the future but isn't blocking the game.

I realize that this may be out of scope of unit testing in general and the test runner in Unity, but it shows a need for content validation tools. I can implement my own editor window to do this, but maybe it would make sense to support this leveraging the existing test runner framework.