[perl #131275] Str.comb returns a List instead of a Seq when matcher is a Regex

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# New Ticket Created by  Zoffix Znet 
# Please include the string:  [perl #131275]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=131275 >


Filing per https://irclog.perlgeek.de/perl6-dev/2017-05-08#i_14551843

    <Zoffix_> m: say WHAT 'foo'.comb
    <camelia> rakudo-moar 20cfd6: OUTPUT: «(Seq)␤»
    <Zoffix_> m: say WHAT 'foo'.comb: 1
    <camelia> rakudo-moar 20cfd6: OUTPUT: «(Seq)␤»
    <Zoffix_> m: say WHAT 'foo'.comb: /1/
    <camelia> rakudo-moar 20cfd6: OUTPUT: «(List)␤»

See also https://irclog.perlgeek.de/perl6-dev/2017-05-08#i_14552322