fix the rest of the nits

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

@@ -205,13 +205,15 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
             // having any hidden variants means that we need a catch-all arm
             needs_catch_all_arm |= has_hidden_variants;
 
-            let missing_arms = missing_pats.filter_map(|(pat, hidden)| {
-                // filter out hidden patterns because they're handled by the catch-all arm
-                (!hidden).then(|| {
+            let missing_arms = missing_pats
+                .filter(|(_, hidden)| {
+                    // filter out hidden patterns because they're handled by the catch-all arm
+                    !hidden
+                })
+                .map(|(pat, _)| {
                     make::match_arm(iter::once(pat), None, make::ext::expr_todo())
                         .clone_for_update()
-                })
-            });
+                });
 
             let catch_all_arm = new_match_arm_list
                 .arms()

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

@@ -100,14 +100,14 @@ fn add_vis_to_referenced_record_field(acc: &mut Assists, ctx: &AssistContext<'_>
     let target_module = parent.module(ctx.db());
 
     let in_file_source = record_field_def.source(ctx.db())?;
-    let (vis_owner, target): (ast::AnyHasVisibility, TextRange) = match in_file_source.value {
+    let (vis_owner, target) = match in_file_source.value {
         hir::FieldSource::Named(it) => {
-            let s = it.syntax();
-            (ast::AnyHasVisibility::cast(s.clone()).unwrap(), s.text_range())
+            let range = it.syntax().text_range();
+            (ast::AnyHasVisibility::new(it), range)
         }
         hir::FieldSource::Pos(it) => {
-            let s = it.syntax();
-            (ast::AnyHasVisibility::cast(s.clone()).unwrap(), s.text_range())
+            let range = it.syntax().text_range();
+            (ast::AnyHasVisibility::new(it), range)
         }
     };
 
@@ -152,12 +152,8 @@ fn target_data_for_def(
         let source = x.source(db)?;
         let in_file_syntax = source.syntax();
         let file_id = in_file_syntax.file_id;
-        let syntax = in_file_syntax.value;
-        Some((
-            ast::AnyHasVisibility::cast(syntax.clone()).unwrap(),
-            syntax.text_range(),
-            file_id.original_file(db.upcast()),
-        ))
+        let range = in_file_syntax.value.text_range();
+        Some((ast::AnyHasVisibility::new(source.value), range, file_id.original_file(db.upcast())))
     }
 
     let target_name;
@@ -198,8 +194,8 @@ fn target_data_for_def(
             target_name = m.name(db);
             let in_file_source = m.declaration_source(db)?;
             let file_id = in_file_source.file_id.original_file(db.upcast());
-            let syntax = in_file_source.value.syntax();
-            (ast::AnyHasVisibility::cast(syntax.clone()).unwrap(), syntax.text_range(), file_id)
+            let range = in_file_source.value.syntax().text_range();
+            (ast::AnyHasVisibility::new(in_file_source.value), range, file_id)
         }
         // FIXME
         hir::ModuleDef::Macro(_) => return None,

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

@@ -67,11 +67,11 @@ pub(crate) fn promote_local_to_const(acc: &mut Assists, ctx: &AssistContext<'_>)
         cov_mark::hit!(promote_local_non_const);
         return None;
     }
-    let target = let_stmt.syntax().text_range();
+
     acc.add(
         AssistId("promote_local_to_const", AssistKind::Refactor),
         "Promote local to constant",
-        target,
+        let_stmt.syntax().text_range(),
         |edit| {
             let name = to_upper_snake_case(&name.to_string());
             let usages = Definition::Local(local).usages(&ctx.sema).all();