[perl #93976] [BUG] Num does not initialize to NaN

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# New Ticket Created by  Ron Schmidt 
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I raised this on IRC here 
http://irclog.perlgeek.de/perl6/2011-07-03#i_4051342

To summarize:
Spec http://perlcabal.org/syn/S03.html#Declarators says "Native 
floating-point containers are by default initialized to NaN".

In the example below it appears that $y is incorrectly initialized to zero.

12:37   PhatEddy
        perl6: my Num $x = NaN; my Num $y; say $x+2; say $y +2
12:37   p6eval
        pugs, rakudo 72d158, niecza v7-11-g9ba8284: OUTPUT«NaN␤2␤»