[perl #126312] [BUG] `for @a` is not creating containers for uninitialized elements

[Jan-Olof Hendig via RT]

On Sat, 07 May 2016 13:26:09 -0700, sml...@gmail.com wrote:
> Confirmed on current Rakudo.
> 
> Interestingly, it works if `for @a` is replaced with `for @a[*]`:
> 
>     ➜  my Int @a;  @a[5] = 42;   $_ = 100 for @a[*];  say @a;
>     [100 100 100 100 100 100]

Seems to have been fixed with Rakudo commit 
069b789af545dff30d450618fae82ccb82579346.
Tests needed.