Extend annotated assignment rule's RHS

test/test_parser.py

@@ -194,6 +194,9 @@ def test_no_error_nodes(each_version):
 def test_named_expression(works_ge_py38):
     works_ge_py38.parse("(a := 1, a + 1)")
 
+def test_extended_rhs_annassign(works_ge_py38):
+    works_ge_py38.parse("x: y = z,")
+    works_ge_py38.parse("x: Tuple[int, ...] = z, *q, w")
 
 @pytest.mark.parametrize(
     'param_code', [