Add info to CannotPrecomp exception
Add info to CannotPrecomp exception

The CannotPrecomp error message was LTA because it did not provide
actionable information to new users.  This revision clarifies that
users should remove the item that cannot be pre-compiled from a
Module.

labster/rakudo,rakudo/rakudo,rakudo/rakudo,rakudo/rakudo,labster/rakudo,rakudo/rakudo,tbrowder/rakudo,labster/rakudo,salortiz/rakudo,labster/rakudo,tbrowder/rakudo,rakudo/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,salortiz/rakudo,salortiz/rakudo,salortiz/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,salortiz/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,rakudo/rakudo,labster/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,labster/rakudo,salortiz/rakudo