[perl #69364] Negated type check dies with "Class P6protoobject already registered"

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# New Ticket Created by  Moritz Lenz 
# Please include the string:  [perl #69364]
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# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=69364 >


23:06 <@moritz_> rakudo: say ( -> $x { $x } !~~ Code)
23:06 <+p6eval> rakudo 0eaf62: OUTPUT«Class P6protoobject already
                registered!␤in Main (/tmp/dggDmckmOR:2)␤»

LTA, IMNSHO :-)