vim: Fix out of scope insert line above (#55459)

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Closes #52588 

Release Notes:

- Fixed insert line above out of an scope

Co-authored-by: Yara 🏳️‍⚧️ <git@yara.blue>

crates/vim/src/normal.rs

@@ -752,7 +752,17 @@ impl Vim {
                     let indent = if auto_indent_mode == AutoIndentMode::None {
                         String::new()
                     } else {
-                        snapshot.indent_and_comment_for_line(MultiBufferRow(row), cx)
+                        let indent_size = snapshot.indent_size_for_line(MultiBufferRow(row)).len;
+                        let first_char = snapshot.chars_at(Point::new(row, indent_size)).next();
+                        let indent_row = if matches!(first_char, Some('}') | Some(')')) {
+                            snapshot
+                                .prev_non_blank_row(MultiBufferRow(row))
+                                .map(|r| r.0)
+                                .unwrap_or(row)
+                        } else {
+                            row
+                        };
+                        snapshot.indent_and_comment_for_line(MultiBufferRow(indent_row), cx)
                     };
                     let start_of_line = Point::new(row, 0);
                     let edit = (start_of_line..start_of_line, indent + "\n");
@@ -1721,6 +1731,20 @@ mod test {
                 }"},
             Mode::Insert,
         );
+        cx.assert_binding(
+            "shift-o",
+            indoc! {"
+                fn test() {
+                    println!();
+                ˇ}"},
+            Mode::Normal,
+            indoc! {"
+                fn test() {
+                    println!();
+                    ˇ
+                }"},
+            Mode::Insert,
+        );
     }
 
     #[gpui::test]