[perl #130895] [SINK] `when` fails to sink stuff when it's not in a `given`

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# New Ticket Created by  Zoffix Znet 
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23:20           m: given 42 { when *.so {Failure.new} }
23:20   camelia rakudo-moar 9d497e: OUTPUT: «Failed␤  in block <unit> at <tmp> 
line 1␤␤Actually thrown at:␤  in block <unit> at <tmp> line 1␤␤»
23:20   IOninja This does sink it.
23:20           m:  { when *.so {Failure.new} }
23:20   camelia rakudo-moar 9d497e: ( no output )
23:20   IOninja but not this