Add Support For @DebugLog-Behavior On Other Classes

Ideally there would be a way to log every class as well (ala Xtrace for iOS). The main use case in mind is adding remote logging/instrumentation to existing, legacy codebases.

The issue does not name any files, tests, or entry points. Start by reviewing how @DebugLog-Behavior currently applies to classes and how method-call logging is implemented, then determine the scope needed for logging arbitrary existing classes. Done means the proposed support works for other classes and has coverage for the intended legacy-code instrumentation use case.

Written by the indexing model from the issue text.