nodes: keep plugins which subclass Item, File working for a bit more (#9279)

* nodes: keep plugins which subclass Item, File working for a bit more

Fix #8435.

* Update src/_pytest/nodes.py

Co-authored-by: Bruno Oliveira <nicoddemus@gmail.com>

Co-authored-by: Florian Bruhin <me@the-compiler.org>
Co-authored-by: Bruno Oliveira <nicoddemus@gmail.com>

src/_pytest/nodes.py

@@ -669,9 +669,13 @@ class Item(Node):
         nodeid: Optional[str] = None,
         **kw,
     ) -> None:
+        # The first two arguments are intentionally passed positionally,
+        # to keep plugins who define a node type which inherits from
+        # (pytest.Item, pytest.File) working (see issue #8435).
+        # They can be made kwargs when the deprecation above is done.
         super().__init__(
-            name=name,
-            parent=parent,
+            name,
+            parent,
             config=config,
             session=session,
             nodeid=nodeid,