Fix 'too many open files' during module uninstall
Fix 'too many open files' during module uninstall

Recently uninstalling modules might give a 'too many open files' error. By making a call to `.dir` eager this error goes away, although I'm not clear why or what changed in e.g. libuv that would require this now.
salortiz/rakudo,MasterDuke17/rakudo,salortiz/rakudo,MasterDuke17/rakudo,tony-o/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,labster/rakudo,tony-o/rakudo,labster/rakudo,tony-o/rakudo,salortiz/rakudo,tbrowder/rakudo,rakudo/rakudo,tbrowder/rakudo,rakudo/rakudo,tbrowder/rakudo,tony-o/rakudo,salortiz/rakudo,tony-o/rakudo,salortiz/rakudo,labster/rakudo,rakudo/rakudo,tbrowder/rakudo,labster/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,rakudo/rakudo,rakudo/rakudo,labster/rakudo,tbrowder/rakudo,labster/rakudo,salortiz/rakudo,rakudo/rakudo,tony-o/rakudo