Remove last element1 use (#752)

* Remove last element1 use.

* Call noname constructor as before.

* Use renamed `build` method.

Author: davidmorgan

source_gen/lib/src/constants/revive.dart

@@ -2,9 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// TODO(kevmoo): migrate analyzer APIs when we can get latest with a stable SDK
-// ignore_for_file: deprecated_member_use
-
 import 'package:analyzer/dart/constant/value.dart';
 import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/dart/element/type.dart';
@@ -82,9 +79,10 @@ Revivable reviveInstance(DartObject object, [LibraryElement2? origin]) {
   final i = (object as DartObjectImpl).getInvocation();
   if (i != null) {
     url = Uri.parse(urlOfElement(i.constructor2.enclosingElement2));
+    String newToEmpty(String string) => string == 'new' ? '' : string;
     final result = Revivable._(
       source: url,
-      accessor: i.constructor.name,
+      accessor: newToEmpty(i.constructor2.name3!),
       namedArguments: i.namedArguments,
       positionalArguments: i.positionalArguments,
     );

source_gen/test/generator_for_annotation_test.dart

@@ -317,7 +317,7 @@ class _TestingResolver implements ReleasableResolver {
   }
 
   @override
-  Future<LibraryElement2> libraryFor2(
+  Future<LibraryElement2> libraryFor(
     AssetId assetId, {
     bool allowSyntaxErrors = false,
   }) async {