vulkan: explicitly cast object-type enum

VkObjectType and VkDebugReportObjectTypeEXT has the same enum-values.
Why the Vulkan WG thought this was a good idea, beats me. But it's what
we have to live with now.

Anyway, instead of having a statement that implicitly casts two
different values from the former to the latter, let's fully relsove the
type as the former, and cast the value when using it instead.

Fixes: 41318a5819 ("vulkan: Use vk_object_base::type for debug_report")
Acked-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15547>

src/vulkan/runtime/vk_debug_report.c

@@ -150,8 +150,9 @@ vk_debug_report(struct vk_instance *instance,
                 const char* pLayerPrefix,
                 const char *pMessage)
 {
-   VkDebugReportObjectTypeEXT object_type =
+   VkObjectType object_type =
       object ? object->type : VK_OBJECT_TYPE_UNKNOWN;
-   debug_report(instance, flags, object_type, (uint64_t)(uintptr_t)object,
-                location, messageCode, pLayerPrefix, pMessage);
+   debug_report(instance, flags, (VkDebugReportObjectTypeEXT)object_type,
+                (uint64_t)(uintptr_t)object, location, messageCode,
+                pLayerPrefix, pMessage);
 }