Migrate remove_dbg assist to use SyntaxEditor

Author: Hmikihiro

crates/ide-assists/src/handlers/remove_dbg.rs

@@ -2,7 +2,8 @@ use itertools::Itertools;
 use syntax::{
     Edition, NodeOrToken, SyntaxElement, T, TextRange, TextSize,
     ast::{self, AstNode, AstToken, make},
-    match_ast, ted,
+    match_ast,
+    syntax_editor::SyntaxEditor,
 };
 
 use crate::{AssistContext, AssistId, Assists};
@@ -178,8 +179,8 @@ fn replace_nested_dbgs(expanded: ast::Expr) -> ast::Expr {
         return replaced;
     }
 
-    let expanded = expanded.clone_for_update();
-
+    let expanded = expanded.clone_subtree();
+    let mut editor = SyntaxEditor::new(expanded.syntax().clone());
     // We need to collect to avoid mutation during traversal.
     let macro_exprs: Vec<_> =
         expanded.syntax().descendants().filter_map(ast::MacroExpr::cast).collect();
@@ -191,13 +192,13 @@ fn replace_nested_dbgs(expanded: ast::Expr) -> ast::Expr {
         };
 
         if let Some(expr) = expr_opt {
-            ted::replace(mac.syntax(), expr.syntax().clone_for_update());
+            editor.replace(mac.syntax(), expr.syntax().clone_for_update());
         } else {
-            ted::remove(mac.syntax());
+            editor.delete(mac.syntax());
         }
     }
-
-    expanded
+    let expanded_syntax = editor.finish().new_root().clone();
+    ast::Expr::cast(expanded_syntax).unwrap()
 }
 
 fn whitespace_start(it: Option<SyntaxElement>) -> Option<TextSize> {