[3.12] gh-108303: Move test_future into its own test_future_stmt subdir (#109368) (#109679)

gh-108303: Move `test_future` into its own test_future_stmt subdir (#109368)

(cherry picked from commit 82505dc)

Co-authored-by: Nikita Sobolev <[email protected]>

Author: vstinner

Lib/test/libregrtest/runtest.py

@@ -232,6 +232,7 @@ def iter_tests(self):
 SPLITTESTDIRS = {
     "test_asyncio",
     "test_concurrent_futures",
+    "test_future_stmt",
     "test_multiprocessing_fork",
     "test_multiprocessing_forkserver",
     "test_multiprocessing_spawn",

Lib/test/test_future_stmt/__init__.py

@@ -0,0 +1,6 @@
+import os
+from test import support
+
+
+def load_tests(*args):
+    return support.load_package_tests(os.path.dirname(__file__), *args)