Instead of logging directly, we now write into a `Strings` set that is referenced by the caller. While at it, added a test-case to ensure that self-reference invocations and --all behave properly. Change-Id: Ib183ab8e8e90436300e1c870fb3ae8f18730abbf
Instead of logging directly, we now write into a `Strings` set that is referenced by the caller. While at it, added a test-case to ensure that self-reference invocations and --all behave properly. Change-Id: Ib183ab8e8e90436300e1c870fb3ae8f18730abbf