[perl #64004] Null PMC access while creating a subset of a role

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# New Ticket Created by  Daniel Ruoso 
# Please include the string:  [perl #64004]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=64004 >


<ruoso> rakudo: role Foo {}; role Bar {}; role SigType does Foo does Bar
{}; subset Really of SigType where Foo & Bar; say Foo.does(Really); say
Really.does(Foo);
<p6eval> rakudo f8b6ae: OUTPUT«Null PMC access in getprop()␤current
instr.: '!CREATE_SUBSET_TYPE' pc 17211 (src/builtins/guts.pir:213)␤»