[3.12] gh-108179: Add error message for parser stack overflows (GH-108256) (#108263)

gh-108179: Add error message for parser stack overflows (GH-108256)
(cherry picked from commit 8661751)

Co-authored-by: Dennis Sweeney <[email protected]>

Author: miss-islington

Lib/test/test_syntax.py

@@ -2335,7 +2335,7 @@ def test_error_on_parser_stack_overflow(self):
         source = "-" * 100000 + "4"
         for mode in ["exec", "eval", "single"]:
             with self.subTest(mode=mode):
-                with self.assertRaises(MemoryError):
+                with self.assertRaisesRegex(MemoryError, r"too complex"):
                     compile(source, "<string>", mode)
 
     @support.cpython_only