[perl #122355] [BUG] Can't use &exit from END block in Rakudo, all backends

[Christian Bartolomaeus via RT]

This seems to work now:

$ perl6-m -e 'END exit(5)'; echo $?
5
$ perl6-p -e 'END exit(5)'; echo $?
5
$ perl6-j -e 'END exit(5)'; echo $?
5

I added a test to S04-phasers/end.t with the following commit: 
https://github.com/perl6/roast/commit/7050e78bc7

I'm closing the ticket now.