[perl #121265] tr/// only works on rakudo-parrot, not on moar or jvm

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# New Ticket Created by  Moritz Lenz 
# Please include the string:  [perl #121265]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=121265 >


<moritz> r: $_ = 'herro eilo'; tr/rl/lr/; .say
<camelia> rakudo-moar 230a54: OUTPUT«===SORRY!===␤Cannot find method 'Str'␤»
<+camelia> ..rakudo-jvm 230a54: OUTPUT«===SORRY!===␤No such method 'Str' 
for invocant of type 'NQPMu'␤»
 >camelia> ..rakudo-parrot 230a54: OUTPUT«hello eiro␤»

Originally uncovered by eiro++ and masak++