gh-93847: Fix repr of enum of generic aliases (GH-93885)

(cherry picked from commit 138db8e48b)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Lib/test/test_enum.py

@@ -7,6 +7,7 @@ import pydoc
 import sys
 import unittest
 import threading
+import typing
 import builtins as bltns
 from collections import OrderedDict
 from datetime import date
@@ -978,6 +979,15 @@ class TestSpecial(unittest.TestCase):
             spam = SpamEnumNotInner
         self.assertEqual(SpamEnum.spam.value, SpamEnumNotInner)
 
+    def test_enum_of_generic_aliases(self):
+        class E(Enum):
+            a = typing.List[int]
+            b = list[int]
+        self.assertEqual(E.a.value, typing.List[int])
+        self.assertEqual(E.b.value, list[int])
+        self.assertEqual(repr(E.a), '<E.a: typing.List[int]>')
+        self.assertEqual(repr(E.b), '<E.b: list[int]>')
+
     @unittest.skipIf(
             python_version >= (3, 13),
             'inner classes are not members',