[perl #67768] [BUG] Very unhelpful error message for declaring a role with a name already assigned to a class

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# New Ticket Created by  Christopher Hudnall 
# Please include the string:  [perl #67768]
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# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=67768 >


<hudnix>rakudo: role List {method foo{1}}

<p6eval>rakudo 3b1bda: OUTPUT«Method '!add_variant' not found for invocant
of class ”␤»

My first rakudobug...