[perl #53812] placeholder variable support incomplete

# New Ticket Created by  Stephen Ws
# Please include the string:  [perl #53812]
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# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=53812 >


Placeholder vars in rakudo currently augment the parameter list instead
of replacing it.

Positional placeholder vars in rakudo aren't sorted lexicographically.