[Template] Mixins and foreach

[Nicholas Wilson]

On Sunday, 1 October 2017 at 06:27:21 UTC, Nicholas Wilson wrote:
> And am getting
> util.d(72,12): Error: template instance helper!(foo) cannot use 
> local 'foo' as parameter to non-global template 
> helper(Fields...)

Fixed by making helper a global template.

Thanks Jonathan!