[perl #129278] [BUG] Can't assign to `int` private attribute using signature

[Christian Bartolomaeus via RT]

On Sat Oct 15 00:31:09 2016, barto...@gmx.de wrote:
> [...]
> Tests that use the new method SeqNextNFromIterator fail due to this
> problem. From S32-list/head.t:

Again, for the records: lizmat++ put in a bandaid for rakudo-j with Rakudo 
commit 666128fc6e. The tests from S32-list/head.t run fine, but the underlying 
problem is still there.