Nested Classes don't include the containing class in the test output explorer

[vbreuss]

I often want to group tests in a nested class and would expect the class name in the test explorer to reflect the full name, e.g.

public class OuterTests
{
  public class InnerTests
  {
    [Test]
    public async Task SomeTest()
    {
      // Tests something
    }
  }
}

should be displayed as OuterTests+InnerTests.SomeTest, but in the test explorer the OuterTest class is ignored: