Fix placement of inline parameter comments (#13379)

crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/function.py

@@ -458,3 +458,108 @@ def foo(x: S) -> S: ...
 
 @decorator # comment
 def foo(x: S) -> S: ...
+
+
+# Regression tests for https://github.com/astral-sh/ruff/issues/13369
+def foo(
+    arg: (  # comment with non-return annotation
+        int
+        # comment with non-return annotation
+    ),
+):
+    pass
+
+
+def foo(
+    arg: (  # comment with non-return annotation
+        int
+        | range
+        | memoryview
+        # comment with non-return annotation
+    ),
+):
+    pass
+
+def foo(arg: (
+        int
+        # only after
+)):
+    pass
+
+# Asserts that "incorrectly" placed comments don't *move* by fixing https://github.com/astral-sh/ruff/issues/13369
+def foo(
+    # comment with non-return annotation
+    # comment with non-return annotation
+    arg: (int),
+):
+    pass
+
+
+# Comments between *args and **kwargs
+def args_no_type_annotation(*
+    # comment
+    args): pass
+
+def args_type_annotation(*
+    # comment
+    args: int): pass
+
+def args_trailing_end_of_line_comment(* # comment
+    args): pass
+
+def args_blank_line_comment(*
+
+    # comment
+
+    args): pass
+
+def args_with_leading_parameter_comment(
+    # What comes next are arguments
+    *
+    # with an inline comment
+    args): pass
+
+
+def kargs_no_type_annotation(**
+    # comment
+    kwargs): pass
+
+def kwargs_type_annotation(**
+    # comment
+    kwargs: int): pass
+
+
+def args_many_comments(
+    # before
+    *
+    # between * and name
+    args # trailing args
+    # after name
+    ): pass
+
+
+def args_many_comments_with_type_annotation(
+    # before
+    *
+    # between * and name
+    args # trailing args
+    # before colon
+    :  # after colon
+    # before type
+    int # trailing type
+    # after type
+    ): pass
+
+
+
+def args_with_type_annotations_no_after_colon_comment(
+    # before
+    *
+    # between * and name
+    args # trailing args
+    # before colon
+    :
+    # before type
+    int # trailing type
+    # after type
+    ): pass