Fix fmt:skip for function with return type (#6733)

crates/ruff_python_formatter/resources/test/fixtures/ruff/fmt_skip/type_params.py

@@ -26,3 +26,13 @@ def test  [
     B,
 ]  (): # fmt: skip
     ...
+
+def test  [
+    # comment
+    A,
+
+    # another
+
+    B,
+]  () -> str: # fmt: skip
+    ...

crates/ruff_python_formatter/src/statement/clause.rs

@@ -108,13 +108,17 @@ impl<'a> ClauseHeader<'a> {
                 is_async: _,
                 decorator_list: _,
                 name: _,
-                returns: _,
+                returns,
                 body: _,
             }) => {
                 if let Some(type_params) = type_params.as_ref() {
                     visit(type_params, visitor);
                 }
                 visit(parameters.as_ref(), visitor);
+
+                if let Some(returns) = returns.as_deref() {
+                    visit(returns, visitor);
+                }
             }
             ClauseHeader::If(StmtIf {
                 test,

crates/ruff_python_formatter/tests/snapshots/format@fmt_skip__type_params.py.snap

@@ -32,6 +32,16 @@ def test  [
     B,
 ]  (): # fmt: skip
     ...
+
+def test  [
+    # comment
+    A,
+
+    # another
+
+    B,
+]  () -> str: # fmt: skip
+    ...
 ```
 
 ## Output
@@ -67,6 +77,17 @@ def test  [
     B,
 ]  ():  # fmt: skip
     ...
+
+
+def test  [
+    # comment
+    A,
+
+    # another
+
+    B,
+]  () -> str:  # fmt: skip
+    ...
 ```