[skip ci] Add test owners for a special hi-pri class of tests (#67553)

Summary:
Action following https://github.com/pytorch/pytorch/issues/66232

This change does require some context: there were several suggestions regarding what to do about this group of tests: tests that are core and crucial to all of PyTorch and are too broad to be owned by one team.
1. Let's add a "module: core" and put people behind it! This idea sounds appealing unless you are one of the people backing the label. From talking to albanD among others, this idea of putting all these core tests on the shoulder of a few people or one team isn't super fair and I have not yet found anyone willing to take on this job.
2. Taking advantage of the fact that we already have a triaging oncall that takes turns triaging issues, we can leave these tests essentially unlabeled and allow the oncall to triage these tests. Since these tests are crucial to PyTorch, we'll add the "high priority" label to mark them different from other unowned tests (see https://github.com/pytorch/pytorch/issues/67552).
3. I _could_ still create an unbacked label "module: core" and attribute these tests there, but I don't like the idea of creating a facade that the tests are "triaged" to a label when no one is actually taking a look.

Now we could potentially break these tests down into smaller files so that each piece _could_ be owned by a team, but 1. I don't know if this is currently feasible and 2. This approach does not prevent that from happening in the future.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/67553

Reviewed By: albanD

Differential Revision: D32025004

Pulled By: janeyx99

fbshipit-source-id: 1fb1aa4c27e305695ab6e80ae3d02f90519939c0

test/test_foreach.py

@@ -1,3 +1,5 @@
+# Owner(s): ["module: mta"]
+
 import itertools
 from numbers import Number
 import random

test/test_functional_autograd_benchmark.py

@@ -1,3 +1,5 @@
+# Owner(s): ["module: autograd"]
+
 from torch.testing._internal.common_utils import TestCase, run_tests, slowTest, IS_WINDOWS
 
 import subprocess

test/test_module_init.py

@@ -1,3 +1,5 @@
+# Owner(s): ["module: nn"]
+
 import inspect
 import torch
 from unittest import mock

test/test_modules.py

@@ -1,3 +1,5 @@
+# Owner(s): ["module: nn"]
+
 from itertools import product
 from inspect import signature, isgenerator
 from copy import deepcopy

test/test_ops.py

@@ -1,3 +1,5 @@
+# Owner(s): ["high priority"]
+
 from collections.abc import Sequence
 from functools import partial, wraps
 import warnings

test/test_overrides.py

@@ -1,3 +1,5 @@
+# Owner(s): ["high priority"]
+
 import torch
 import numpy as np
 import inspect

test/test_python_dispatch.py

@@ -1,3 +1,5 @@
+# Owner(s): ["high priority"]
+
 import torch
 from torch.testing._internal.common_utils import TestCase, run_tests
 from torch.utils._pytree import tree_map

test/test_pytree.py

@@ -1,3 +1,5 @@
+# Owner(s): ["high priority"]
+
 import torch
 from torch.testing._internal.common_utils import TestCase, run_tests
 from torch.utils._pytree import tree_flatten, tree_map, tree_unflatten, TreeSpec, LeafSpec

test/test_stateless.py

@@ -1,3 +1,5 @@
+# Owner(s): ["module: nn"]
+
 import unittest
 
 import torch

test/test_utils.py

@@ -1,3 +1,5 @@
+# Owner(s): ["high priority"]
+
 import sys
 import os
 import contextlib