Merge #7957

7957: Fix labels for single import assists r=SomeoneToIgnore a=SomeoneToIgnore

Before: 
![image](https://user-images.githubusercontent.com/2690773/110609185-a26b8e00-8195-11eb-87be-d21b75817c22.png)

After:
![image](https://user-images.githubusercontent.com/2690773/110609198-a5667e80-8195-11eb-8c58-9ae19ba71905.png)


Co-authored-by: Kirill Bulatov <mail4score@gmail.com>

Author: bors[bot]

crates/ide_assists/src/handlers/auto_import.rs

@@ -1,7 +1,7 @@
 use ide_db::helpers::{
     import_assets::{ImportAssets, ImportCandidate},
     insert_use::{insert_use, ImportScope},
-    item_name, mod_path_to_ast,
+    mod_path_to_ast,
 };
 use syntax::{ast, AstNode, SyntaxNode};
 
@@ -90,17 +90,13 @@ pub(crate) fn auto_import(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
     }
 
     let range = ctx.sema.original_range(&syntax_under_caret).range;
-    let group = import_group_message(import_assets.import_candidate());
+    let group_label = group_label(import_assets.import_candidate());
     let scope = ImportScope::find_insert_use_container(&syntax_under_caret, &ctx.sema)?;
     for import in proposed_imports {
-        let name = match item_name(ctx.db(), import.original_item) {
-            Some(name) => name,
-            None => continue,
-        };
         acc.add_group(
-            &group,
+            &group_label,
             AssistId("auto_import", AssistKind::QuickFix),
-            format!("Import `{}`", name),
+            format!("Import `{}`", import.import_path),
             range,
             |builder| {
                 let rewriter =
@@ -126,7 +122,7 @@ pub(super) fn find_importable_node(ctx: &AssistContext) -> Option<(ImportAssets,
     }
 }
 
-fn import_group_message(import_candidate: &ImportCandidate) -> GroupLabel {
+fn group_label(import_candidate: &ImportCandidate) -> GroupLabel {
     let name = match import_candidate {
         ImportCandidate::Path(candidate) => format!("Import {}", candidate.name.text()),
         ImportCandidate::TraitAssocItem(candidate) => {

crates/ide_assists/src/handlers/qualify_path.rs

@@ -3,7 +3,7 @@ use std::iter;
 use hir::AsAssocItem;
 use ide_db::helpers::{
     import_assets::{ImportCandidate, LocatedImport},
-    item_name, mod_path_to_ast,
+    mod_path_to_ast,
 };
 use ide_db::RootDatabase;
 use syntax::{
@@ -78,7 +78,7 @@ pub(crate) fn qualify_path(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
         acc.add_group(
             &group_label,
             AssistId("qualify_path", AssistKind::QuickFix),
-            label(ctx.db(), candidate, &import),
+            label(candidate, &import),
             range,
             |builder| {
                 qualify_candidate.qualify(
@@ -199,21 +199,17 @@ fn group_label(candidate: &ImportCandidate) -> GroupLabel {
     GroupLabel(format!("Qualify {}", name))
 }
 
-fn label(db: &RootDatabase, candidate: &ImportCandidate, import: &LocatedImport) -> String {
-    let display_path = match item_name(db, import.original_item) {
-        Some(display_path) => display_path.to_string(),
-        None => "{unknown}".to_string(),
-    };
+fn label(candidate: &ImportCandidate, import: &LocatedImport) -> String {
     match candidate {
         ImportCandidate::Path(candidate) => {
             if candidate.qualifier.is_some() {
-                format!("Qualify with `{}`", display_path)
+                format!("Qualify with `{}`", import.import_path)
             } else {
-                format!("Qualify as `{}`", display_path)
+                format!("Qualify as `{}`", import.import_path)
             }
         }
-        ImportCandidate::TraitAssocItem(_) => format!("Qualify `{}`", display_path),
-        ImportCandidate::TraitMethod(_) => format!("Qualify with cast as `{}`", display_path),
+        ImportCandidate::TraitAssocItem(_) => format!("Qualify `{}`", import.import_path),
+        ImportCandidate::TraitMethod(_) => format!("Qualify with cast as `{}`", import.import_path),
     }
 }