[perl #65412] Null PMC caused by implicit return of regex

[via RT]

# New Ticket Created by  Daniel Ruoso 
# Please include the string:  [perl #65412]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=65412 >


<ruoso> rakudo: class A { has $!rx; method do { $!rx = / some
regex / }; }; A.new.do; #pmichaud
<p6eval> rakudo 8009ac: OUTPUT«Null PMC access in isa_pmc()␤current
instr.: 'parrot;PGE;Match;new' pc 33 (compilers/pge/PGE/Match.pir:65)␤»
<ruoso> rakudo: class A { has $!rx; method do { $!rx = / some regex /;
1}; }; A.new.do; #pmichaud
<p6eval> rakudo 8009ac:  ( no output )
<ruoso> if the regex fall out as the implicit return, it causes the null
pmc