fixes #27586, prefer context type in generic inference

pkg/analyzer/test/src/summary/resynthesize_ast_test.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 library analyzer.test.src.summary.resynthesize_ast_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/src/dart/element/element.dart';
@@ skipping 146 matching lines @@
   }
 
   @override
   @failingTest
   void test_constructors_inferFromArguments_const() {
     super.test_constructors_inferFromArguments_const();
   }
 
   @override
   @failingTest
+  void test_constructors_inferFromArguments_downwardsFromConstructor() {
+    super.test_constructors_inferFromArguments_downwardsFromConstructor();
+  }
+
+  @override
+  @failingTest
   void test_constructors_inferFromArguments_factory() {
     super.test_constructors_inferFromArguments_factory();
   }
 
   @override
   @failingTest
   void test_constructors_inferFromArguments_named() {
     super.test_constructors_inferFromArguments_named();
   }
 
@@ skipping 759 matching lines @@
   }
 
   @override
   DartSdk createDartSdk() => AbstractContextTest.SHARED_MOCK_SDK;
 
   @override
   TestSummaryResynthesizer encodeDecodeLibrarySource(Source source) {
     return _encodeLibrary(source);
   }
 }