attribute example dies

[coke]

d6b162b added this example

    class D {
        has $.a is required("it is a good idea");
    }
    my $d = D.new;
    CATCH{ default { say .^name, ': ', .Str } }
    # OUTPUT: «X::Attribute::Required: The attribute '$!a' is required because it is a good idea,␤but you did not provide a value for it.␤»

But the example dies with a compile time error

===SORRY!===
Object of type Str in QAST::WVal, but not in SC

[lizmat]

This was fixed with commit 7c349b7e8098b84960e . Getting a more recent rakudo should fix this issue.

[coke]

Verified, sorry for the noise.

[JJ]

I didn't think this was going to ever happen, but it's happened. I'm reopening an issue closed by someone else.
Thing is, it would be better to mention the version where this is actually working, and maybe provide an alternative for previous versions, as indicated here