[perl #116417] &?ROUTINE inside Regex should refer to Regex itself

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# New Ticket Created by  Paweł Pabian 
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<bbkr> r: "a" ~~ m/{ say &?ROUTINE.WHAT } a/;
 <p6eval> rakudo c3f565: OUTPUT«===SORRY!===␤Undeclared 
name:␤    &?ROUTINE used at line 1␤␤»

 <moritz> r: say Regex ~~ Routine
 <p6eval> rakudo c3f565: OUTPUT«True␤»
 <moritz> should refer to the regex itself