[3.11] gh-104683: Rename Lib/test/clinic.test as Lib/test/clinic.test…

….c (GH-106443) (#106445)

gh-104683: Rename Lib/test/clinic.test as Lib/test/clinic.test.c (GH-106443)
(cherry picked from commit a941bd6)

Co-authored-by: Erlend E. Aasland <erlend@python.org>

Lib/test/test_clinic.py

@@ -1034,15 +1034,16 @@ class ClinicExternalTest(TestCase):
  maxDiff = None
 
  def test_external(self):
+ CLINIC_TEST = 'clinic.test.c'
  # bpo-42398: Test that the destination file is left unchanged if the
  # content does not change. Moreover, check also that the file
  # modification time does not change in this case.
- source = support.findfile('clinic.test')
+ source = support.findfile(CLINIC_TEST)
  with open(source, 'r', encoding='utf-8') as f:
  orig_contents = f.read()
 
  with os_helper.temp_dir() as tmp_dir:
- testfile = os.path.join(tmp_dir, 'clinic.test.c')
+ testfile = os.path.join(tmp_dir, CLINIC_TEST)
  with open(testfile, 'w', encoding='utf-8') as f:
  f.write(orig_contents)
  old_mtime_ns = os.stat(testfile).st_mtime_ns