rename UI function

layout.prop_object() --> prop_search().

The internal name is uiItemPointerR, in python this can translate into into an Object, however this is misleading.
It can be confused with a blender Object and uiItemPointerR can also be used for strings.

release/scripts/ui/space_image.py

@@ -316,7 +316,7 @@ class IMAGE_HT_header(bpy.types.Header):
             row.prop(toolsettings, "snap_element", text="", icon_only=True)
 
             # mesh = context.edit_object.data
-            # row.prop_object(mesh, "active_uv_layer", mesh, "uv_textures")
+            # row.prop_search(mesh, "active_uv_layer", mesh, "uv_textures")
 
         if ima:
             # layers