Enabling diagnostic breaks functionality

[godrose]

Repro steps:

1. Go to repo https://github.com/LogoFX/logofx-client-bootstrapping-adapters-unity
2. Go to test MultipleImplementationAreRegisteredByType_ResolvedCollectionContainsAllImplementations
3. Modify the first line to be var adapter = new UnityContainerAdapter(new UnityContainer().EnableDiagnostic());
4. Run the test

Expected: The test passes

Actual: The test fails

[ENikS]

It might be a while, the organization lucks funding, so no work will be performed