[perl #115802] Error while compiling block when "a" ~~ /<[a]-[\n]>/

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# New Ticket Created by  Tobias Leich 
# Please include the string:  [perl #115802]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=115802 >


<FROGGS> r: say so "a" ~~ /<[a..c]-[\n]>/
<p6eval> rakudo 112307: OUTPUT«===SORRY!===␤Error while compiling block
: Error while compiling op call: Error while compiling block : Error
while compiling block : Unrecognized subtype 'zerowidth' in QAST::Regex
cclass␤»

<FROGGS> r: say so "a" ~~ /\n/
<p6eval> rakudo 112307: OUTPUT«False␤»

<FROGGS> r: say so "a" ~~ /<[\n]>/
<p6eval> rakudo 112307: OUTPUT«False␤»

<FROGGS> r: say so "a" ~~ /<-[\n]>/
<p6eval> rakudo 112307: OUTPUT«True␤»

<FROGGS> r: say so "a" ~~ /<[\n]-[a]>/
<p6eval> rakudo 112307: OUTPUT«False␤»

--
Tobias Leich