Fix threading tests.

Author: ZeroIntensity

Lib/test/test_threading.py

@@ -1595,6 +1595,8 @@ def task():
 
     @cpython_only
     def test_daemon_threads_fatal_error(self):
+        # This used to crash, but Py_EndInterpreter() can now
+        # handle remaining threads.
         import_module("_testcapi")
         subinterp_code = f"""if 1:
             import os
@@ -1612,10 +1614,7 @@ def f():
 
             _testcapi.run_in_subinterp(%r)
             """ % (subinterp_code,)
-        with test.support.SuppressCrashReport():
-            rc, out, err = assert_python_failure("-c", script)
-        self.assertIn("Fatal Python error: Py_EndInterpreter: "
-                      "not the last thread", err.decode())
+        assert_python_ok("-c", script)
 
     def _check_allowed(self, before_start='', *,
                        allowed=True,