[perl #39254] Unicode sub names don't work with :multi

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# New Ticket Created by  Will Coleda 
# Please include the string:  [perl #39254]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/rt3/Ticket/Display.html?id=39254 >


The recently added support (yay!) for subs with unicode names doesn't  
work with :multi

.sub unicode:"\u7777" :multi(string)
   .param pmc arg
   print 'String:'
   say arg
.end
.sub unicode:"\u7777" :multi(int)
   .param pmc arg
   print 'Int:'
   say arg
.end

.sub main :main
   unicode:"\u7777"('what')
   unicode:"\u7777"(23)
.end