Issue #14741: Fix missing support for ellipsis in parser module.
diff --git a/Lib/test/test_parser.py b/Lib/test/test_parser.py
index 50dc8d1..cae09df 100644
--- a/Lib/test/test_parser.py
+++ b/Lib/test/test_parser.py
@@ -106,6 +106,8 @@
         self.check_expr("lambda x, *y, **z: 0")
         self.check_expr("(x for x in range(10))")
         self.check_expr("foo(x for x in range(10))")
+        self.check_expr("...")
+        self.check_expr("a[...]")
 
     def test_simple_expression(self):
         # expr_stmt