Make the profiling detail level configurable with a flag
New flags: --profiling-detail and --library-profiling-detail. When profiling is enabled (by the existing flags) then these flags are taken into account to set the profiling detail level. The levels are: none default exported-functions toplevel-functions all-functions The default value for ghc for libraries is exported-functions and for exes is toplevel-functions. On GHC these levels correspond to the -fprof-auto* flags. The ghc-prof-options will override this (just because it's passed to ghc at the end).