Don't use getattr in _get_parent_attribute to avoid recursion issues (#33595)

* Don't use getattr in _get_parent_attribute to avoid recursion issues

Fixes #23609

* Move extend/prepend to field attribute

Also removes _get_attr* methods that were basically just calling
_get_parent_attribute because it needed to set those params.

Also modifies _get_parent_attribute() to pull those values from the
FieldAttributes instead of using the ones passed into the function.

* Better fixes for _get_parent_attribute

lib/ansible/playbook/attribute.py

@@ -24,8 +24,22 @@ from copy import deepcopy
 
 class Attribute:
 
-    def __init__(self, isa=None, private=False, default=None, required=False, listof=None, priority=0, class_type=None, always_post_validate=False,
-                 inherit=True, alias=None):
+    def __init__(
+        self,
+        isa=None,
+        private=False,
+        default=None,
+        required=False,
+        listof=None,
+        priority=0,
+        class_type=None,
+        always_post_validate=False,
+        inherit=True,
+        alias=None,
+        extend=False,
+        prepend=False,
+    ):
+
         """
         :class:`Attribute` specifies constraints for attributes of objects which
         derive from playbook data.  The attributes of the object are basically
@@ -67,6 +81,8 @@ class Attribute:
         self.always_post_validate = always_post_validate
         self.inherit = inherit
         self.alias = alias
+        self.extend = extend
+        self.prepend = prepend
 
         if default is not None and self.isa in ('list', 'dict', 'set'):
             self.default = deepcopy(default)