Seems .split has similar issue:
<Zoffix__> m: class {}.^lookup("split").candidates.say
<camelia> rakudo-moar 87d0e0: OUTPUT: «()»
<Zoffix__> m: class {}.split
<camelia> rakudo-moar 87d0e0: OUTPUT: «Use of uninitialized value of type Any
in string context.Methods .^name, .perl, .gist, or .say can be used to
stringify it to something meaningful. in block <unit> at <tmp> line 1Cannot
resolve caller split(<anon|46787344>); none of these signa…»
