[perl #104514] >>.() crashed compiler

[Christian Bartolomaeus via RT]

I added a test for the REPL to Rakudo's t/02-rakudo/repl.t: 
https://github.com/rakudo/rakudo/commit/383f45de82

Together with the passing tests in roast (which are not related to the REPL) 
this seems good enough to close this ticket as resolved.