vim: Support count with [x and ]x (#22176)

Fixes: #21577
Fixes: #17245

Release Notes:

- vim: Add <count> support for [x/]x

assets/keymaps/vim.json

@@ -230,8 +230,8 @@
       "ctrl-pageup": "pane::ActivatePrevItem",
       "insert": "vim::InsertBefore",
       // tree-sitter related commands
-      "[ x": "editor::SelectLargerSyntaxNode",
+      "[ x": "vim::SelectLargerSyntaxNode",
-      "] x": "editor::SelectSmallerSyntaxNode",
+      "] x": "vim::SelectSmallerSyntaxNode",
       "] d": "editor::GoToDiagnostic",
       "[ d": "editor::GoToPrevDiagnostic",
       "] c": "editor::GoToHunk",

crates/vim/src/visual.rs

@@ -36,6 +36,8 @@ actions!(
         SelectPrevious,
         SelectNextMatch,
         SelectPreviousMatch,
+        SelectSmallerSyntaxNode,
+        SelectLargerSyntaxNode,
         RestoreVisualSelection,
         VisualInsertEndOfLine,
         VisualInsertFirstNonWhiteSpace,
@@ -74,6 +76,24 @@ pub fn register(editor: &mut Editor, cx: &mut ViewContext<Vim>) {
         vim.select_match(Direction::Prev, cx);
     });
 
+    Vim::action(editor, cx, |vim, _: &SelectLargerSyntaxNode, cx| {
+        let count = Vim::take_count(cx).unwrap_or(1);
+        for _ in 0..count {
+            vim.update_editor(cx, |_, editor, cx| {
+                editor.select_larger_syntax_node(&Default::default(), cx);
+            });
+        }
+    });
+
+    Vim::action(editor, cx, |vim, _: &SelectSmallerSyntaxNode, cx| {
+        let count = Vim::take_count(cx).unwrap_or(1);
+        for _ in 0..count {
+            vim.update_editor(cx, |_, editor, cx| {
+                editor.select_smaller_syntax_node(&Default::default(), cx);
+            });
+        }
+    });
+
     Vim::action(editor, cx, |vim, _: &RestoreVisualSelection, cx| {
         let Some((stored_mode, reversed)) = vim.stored_visual_mode.take() else {
             return;