[perl #72440] [BUG] Unquoted literals in separators in quantifiers in regex matches produce the wrong result in Rakudo

[Carl Mäsak via RT]

masak (>):
> $ perl6 -e 'say "1ab2ab3c" ~~ /^ \d ** abc $/ ?? "OH NOES" !! "oh
> phew"'
> OH NOES
> 
> This is a PGE bug.

As pmichaud pointed out, the same bug also manifests itself in goals, 
for the same reasons:

$ perl6 -e 'say "(foo)" ~~ /^ \( ~ \) foo $/'
Unable to parse , couldn't find final \)
[...]

$ perl6 -e 'say "(fo)o" ~~ /^ \( ~ \) foo $/'
(fo)o