[perl #100232] Implementation details leak through in variable interpolation into regexes

[Christian Bartolomaeus via RT]

Output has changed:

$ perl6-m -e 'my $x = Q[1}; say "pwnd"; #]; "a" ~~ /<$x>/'
pwnd
Cannot find method 'CALL-ME'
  in block <unit> at -e:1

$ perl6-m --version
This is perl6 version 2015.10-7-gca1cf74 built on MoarVM version 2015.10