Vk: add TODOs for when Containers::Iterable<T&> is a thing.

src/Magnum/Vk/DeviceCreateInfo.h

@@ -320,6 +320,9 @@ class MAGNUM_VK_EXPORT DeviceCreateInfo {
          * @see @ref DeviceProperties::pickQueueFamily()
          * @todoc link to addQueues(QueueFlags) once doxygen finally GROWS UP
          *      and can link to &-qualified functions FFS
+         * @todo switch to Iterable<Queue&> once Iterable supports references
+         *      so people can pass a whole array of queues without having to
+         *      build a temporary list of references
          */
         DeviceCreateInfo& addQueues(UnsignedInt family, Containers::ArrayView<const Float> priorities, Containers::ArrayView<const Containers::Reference<Queue>> output) &;
         /** @overload */

src/Magnum/Vk/FramebufferCreateInfo.h

@@ -94,6 +94,10 @@ class MAGNUM_VK_EXPORT FramebufferCreateInfo {
          * -    `attachmentCount` and `pAttachments` to a copy of
          *      @p attachments
          * -    `width`, `height` and `layers` to @p size
+         *
+         * @todo switch to Iterable<ImageView&> once Iterable supports
+         *      references so people can pass a whole array of images without
+         *      having to build a temporary list of references
          */
         explicit FramebufferCreateInfo(VkRenderPass renderPass, Containers::ArrayView<const Containers::Reference<ImageView>> attachments, const Vector3i& size, Flags flags = {});