Update: Treat Obsolete warnings as visible, potentially errors. This allows us to clearly see when we have deprecation warnings. We can still clear the console if it's too spammy. Lastly, because they're treated as warnings and not flat-out-errors it allows us to control when we hard-deprecate via flag to [Obsolete]. Tests: marked a funciton as Obsolete - observed warnings instead of errors. Marked that func as obsolete-error - saw errors.