Improve dummy_implementations preview style formatting (#9240)

crates/ruff_python_formatter/resources/test/fixtures/ruff/newlines.py

@@ -253,4 +253,23 @@ if True:
 # empty line(s) at the end of the file due to nested function
 if True:
     def nested_trailing_function():
-        pass
+        pass
+
+
+def overload1(): ...  # trailing comment
+def overload1(a: int): ...
+
+def overload2(): ...  # trailing comment
+
+def overload2(a: int): ...
+
+def overload3():
+    ...
+    # trailing comment
+def overload3(a: int): ...
+
+def overload4():
+    ...
+    # trailing comment
+
+def overload4(a: int): ...