[perl #65514] Can't mix in True or False as ($value but True)

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# New Ticket Created by  Moritz Lenz 
# Please include the string:  [perl #65514]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=65514 >


This works fine:

$ ./perl6 -e 'enum A <b c>; ("abc" but c).uc.say'
ABC

This doesn't

$ >./perl6 -e '("abc" but Bool::True).uc.say'
The but operator can only be used with a role or enum value on the right
hand side

So it seems that Bool isn't a real Enum somehow. This needs to be fixed.

Cheers,
Moritz