Issue #19527: Fixed tests with defined COUNT_ALLOCS.

Lib/test/test_gc.py

@@ -1,7 +1,7 @@
 import unittest
 from test.support import (verbose, refcount_test, run_unittest,
-                            strip_python_stderr, cpython_only, start_threads,
-                            temp_dir)
+                          strip_python_stderr, cpython_only, start_threads,
+                          temp_dir, requires_type_collecting)
 from test.support.script_helper import assert_python_ok, make_script
 
 import sys
@@ -118,6 +118,7 @@ class GCTests(unittest.TestCase):
         del a
         self.assertNotEqual(gc.collect(), 0)
 
+    @requires_type_collecting
     def test_newinstance(self):
         class A(object):
             pass
@@ -678,6 +679,7 @@ class GCTests(unittest.TestCase):
         stderr = run_command(code % "gc.DEBUG_SAVEALL")
         self.assertNotIn(b"uncollectable objects at shutdown", stderr)
 
+    @requires_type_collecting
     def test_gc_main_module_at_shutdown(self):
         # Create a reference cycle through the __main__ module and check
         # it gets collected at interpreter shutdown.
@@ -691,6 +693,7 @@ class GCTests(unittest.TestCase):
         rc, out, err = assert_python_ok('-c', code)
         self.assertEqual(out.strip(), b'__del__ called')
 
+    @requires_type_collecting
     def test_gc_ordinary_module_at_shutdown(self):
         # Same as above, but with a non-__main__ module.
         with temp_dir() as script_dir: