[perl #61322] Rakudo doesn't complain when subs are redefined

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
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<peters> rakudo: sub foo { }; sub foo {}; say "ok";
<polyglotbot> OUTPUT[ok␤]
<masak> peters: nice one. that's a bug.
* masak submits rakudobug