[perl #69362] WhateverCode objects don't have a signature

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# New Ticket Created by  Moritz Lenz 
# Please include the string:  [perl #69362]
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# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=69362 >


22:53 <@moritz_> rakudo: say (*-3).signature.perl
22:53 <+p6eval> rakudo 0eaf62: OUTPUT«undef␤»
22:54 <@moritz_> rakudo: say (-> $x { $x - 3 }).signature.perl
22:54 <+p6eval> rakudo 0eaf62: OUTPUT«:(Object $x)␤»

I'd expect those two things to have the same signature (don't care about
the name of the param, though)