bug#58639: 29.0.50; [noverlay] Nested overlay iteration in GC

[Matt Armstrong]

Matt Armstrong <matt@rfc20.org> writes:

> +static void
> +mark_overlays (struct interval_node *node)
> +{
> +  if (node == NULL)
> +    return;
> +  mark_object (node->data);
> +  mark_overlays (node->left);
> +  mark_overlays (node->right);
> +}

Heads up the 'node == NULL' above depends on the patch I sent you to get
rid of ITREE_NULL.

-- 
matt (sent from an Emacs running the feature/noverlay branch)