[perl #93978] Spec issue: spec says "a comparison throws exception if either of its arguments is undefined"

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In the spec here http://perlcabal.org/syn/S03.html#Comparison_semantics 
at the bottom of the section it reads " a comparison naturally throws an 
exception if either of its arguments is undefined".

As discussed on IRC here that does not match implementation or 
TimToady's current view of design: 
http://irclog.perlgeek.de/perl6/2011-07-03#i_4051351 and 
http://irclog.perlgeek.de/perl6/2011-07-03#i_4051461 .

The current implementation does:

12:43   PhatEddy
        perl6: my Int $x; if $x<=0 { say 'cmp OK' }
12:43   p6eval
        pugs, rakudo 72d158, niecza v7-11-g9ba8284: OUTPUT«cmp OK␤»