Function after 'in' in @each directive

[sandrojohanides]

fn() should be blue as in lenght() in @for. Also not sure of the different colors of in, from and through.

@each $item, $item2 in $items {}
@each $item, $item2 in fn($items) {}
@for $item from 0 through length($items) {}

[braver]

in is scoped differently for some reason, it makes more sense to simply scope it as an operator. Going to fix that too.