squash! WIP: store _param_ids_from/_param_ids_generated with Marks

repr=False

Author: blueyed

src/_pytest/mark/structures.py

@@ -146,8 +146,8 @@ class Mark:
     #: keyword arguments of the mark decorator
     kwargs = attr.ib()  # Dict[str, object]
 
-    _param_ids_from = attr.ib(type=Optional["Mark"], default=None)
-    _param_ids_generated = attr.ib(type=Optional[List[str]], default=None)
+    _param_ids_from = attr.ib(type=Optional["Mark"], default=None, repr=False)
+    _param_ids_generated = attr.ib(type=Optional[List[str]], default=None, repr=False)
 
     def _has_param_ids(self):
         return "ids" in self.kwargs or len(self.args) >= 4