add history suggest to global search (#2717)

Co-authored-by: Dean Revell <revell@gmail.com>

helix-term/src/commands.rs

@@ -1747,11 +1747,13 @@ fn global_search(cx: &mut Context) {
     let smart_case = config.search.smart_case;
     let file_picker_config = config.file_picker.clone();
 
-    let completions = search_completions(cx, None);
+    let reg = cx.register.unwrap_or('/');
+
+    let completions = search_completions(cx, Some(reg));
     ui::regex_prompt(
         cx,
         "global-search:".into(),
-        None,
+        Some(reg),
         move |_editor: &Editor, input: &str| {
             completions
                 .iter()

helix-view/src/tree.rs

@@ -233,7 +233,6 @@ impl Tree {
             {
                 if let Some(pos) = container.children.iter().position(|&child| child == index) {
                     container.children.remove(pos);
-
                     // TODO: if container now only has one child, remove it and place child in parent
                     if container.children.is_empty() && parent_id != self.root {
                         // if container now empty, remove it