Put tracing functions into their own module
Now that Outputable is independent of DynFlags, we can put tracing
functions using SDocs into their own module that doesn't transitively
depend on any GHC.Driver.* module.Due to a large amount of spam we do not allow new users to create repositories, they are "external" users. If you are a new user and want to create a repository, for example for forking GHC, open a new issue on ghc/ghc using the "get-verified" issue template
Now that Outputable is independent of DynFlags, we can put tracing
functions using SDocs into their own module that doesn't transitively
depend on any GHC.Driver.* module.