Fixed with dc7b688 , tests needed.
> On 29 Dec 2016, at 17:32, Aleks-Daniel Jakimenko-Aleksejev (via RT)
> <[email protected]> wrote:
>
> # New Ticket Created by Aleks-Daniel Jakimenko-Aleksejev
> # Please include the string: [perl #130440]
> # in the subject line of all future correspondence about this issue.
> # <URL: https://rt.perl.org/Ticket/Display.html?id=130440 >
>
>
> Code:
> my @a[3;3]; for @a.pairs -> $p { $p.value = $++ }; say @a.perl
>
>
> Result (2015.12,2016.10):
> Array.new(:shape(3, 3), [0, 1, 2], [3, 4, 5], [6, 7, 8])
>
>
> Result (2016.11,HEAD):
> Cannot modify an immutable Mu
> in block <unit> at /tmp/kUSl3oiqTO line 1
>
>
> Bisectable points to
> https://github.com/rakudo/rakudo/commit/0f2566a99a09d3f65dc4cf5d574c48e2fdacec44
>
>
> Not sure if the previous behavior was right, I'm just pointing out what was
> changed and what kind of code it could've broken (after all, somebody
> actually tried this on camelia).
