fix #28141, fix super generic method bounds check

pkg/analyzer/test/generated/strong_mode_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.generated.strong_mode_test;
 
 import 'dart:async';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_resolution_map.dart';
@@ skipping 2530 matching lines @@
   C c;
 }
 ''';
     await resolveTestUnit(code);
     assertNoErrors(testSource);
     expectIdentifierType('a;', 'A<dynamic>');
     expectIdentifierType('b;', 'B<num>');
     expectIdentifierType('c;', 'C<List<int>>');
   }
 
-  /**
-   * See https://github.com/dart-lang/sdk/issues/27725
-   *
-   * TypeParameterMember.== is not implemented
-   */
-  @failingTest
   test_instantiateToBounds_method_ok_referenceOther_before() async {
     String code = r'''
 class C<T> {
   void m<S0 extends T, S1 extends List<S0>>(S0 p0, S1 p1) {}
 
   void main() {
     m(null, null);
   }
 }
 ''';
@@ skipping 521 matching lines @@
   var v = x;
   v; // marker
 }
 int x = 3;
 ''';
     CompilationUnit unit = await resolveSource(code);
     assertPropagatedAssignedType(code, unit, typeProvider.intType, null);
     assertTypeOfMarkedExpression(code, unit, typeProvider.intType, null);
   }
 }