gh-108303: Move more typing related files to Lib/test/typinganndata (#111825)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

Lib/test/test_type_aliases.py

@@ -2,7 +2,7 @@
 import types
 import unittest
 from test.support import check_syntax_error, run_code
-from test import mod_generics_cache
+from test.typinganndata import mod_generics_cache
 
 from typing import Callable, TypeAliasType, TypeVar, get_args
 

Lib/test/test_typing.py

@@ -45,8 +45,7 @@
 import types
 
 from test.support import captured_stderr, cpython_only, infinite_recursion
-from test import mod_generics_cache
-from test import _typed_dict_helper
+from test.typinganndata import mod_generics_cache, _typed_dict_helper
 
 
 CANNOT_SUBCLASS_TYPE = 'Cannot subclass special typing classes'