Add message args, confidence and a test case for nonlocal that is not a parameter

Author: ramonsaraiva

pylint/checkers/base/basic_error_checker.py

@@ -339,7 +339,12 @@ def _check_nonlocal_and_parameter(self, node: nodes.FunctionDef) -> None:
         for body_node in node.nodes_of_class(nodes.Nonlocal):
             for non_local_name in body_node.names:
                 if non_local_name in node_arg_names:
-                    self.add_message("name-is-parameter-and-nonlocal", node=body_node)
+                    self.add_message(
+                        "name-is-parameter-and-nonlocal",
+                        args=(non_local_name,),
+                        node=body_node,
+                        confidence=HIGH,
+                    )
 
     def _check_nonlocal_and_global(self, node: nodes.FunctionDef) -> None:
         """Check that a name is both nonlocal and global."""

tests/functional/n/name/name_is_parameter_and_nonlocal.py

@@ -2,4 +2,5 @@
 
 
 def tomato(is_tasty: bool = True):
+    nonlocal color
     nonlocal is_tasty # [name-is-parameter-and-nonlocal]

tests/functional/n/name/name_is_parameter_and_nonlocal.txt

@@ -1 +1 @@
-name-is-parameter-and-nonlocal:5:4:5:21:tomato:Name %r is parameter and nonlocal:UNDEFINED
+name-is-parameter-and-nonlocal:6:4:6:21:tomato:Name 'is_tasty' is parameter and nonlocal:HIGH