new behavior:
12:16 <diakopter> rakudo: class A { method foo { say "A" } }; class B is A {
method foo { say "B"; nextsame } }; my &x =
B.WALK(:name<foo>)[0]; &x.wrap: { say "wrap"; nextsame };
x(B.new)
12:16 <camelia> rakudo-moar 61d231: OUTPUT«wrapBAttempt to return outside of
any Routine in block <unit> at /tmp/tmpfile line 1»