[perl #128027] anon enums pretend to be empty lists

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# New Ticket Created by  Wenzel Peppmeyer 
# Please include the string:  [perl #128027]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=128027 >


my %e = enum <one two three>;
say one.WHAT; # OUTPUT«()␤»

# expected

# OUTPUT«(<anon|52818192>)␤»

# The expected output would be analogous to anon classes. Introspection 
# that looks like somebody forgot to put something there is LTA.