Fix lookup of members (issue 27723)

pkg/analyzer/test/generated/non_error_resolver_test.dart

 // Copyright (c) 2014, 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.non_error_resolver_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/error/codes.dart';
@@ skipping 18 matching lines @@
     Source source = addSource(r'''
 enum E { ONE }
 E e() {
   return E.TWO;
 }''');
     computeLibrarySourceErrors(source);
     assertNoErrors(source);
     verify([source]);
   }
 
+  void
+      test_abstractSuperMemberReference_superHasConcrete_mixinHasAbstract_method() {
+    Source source = addSource('''
+class A {
+  void method() {}
+}
+
+abstract class B {
+  void method();
+}
+
+class C extends A with B {
+  void method() {
+    super.method();
+  }
+}
+''');
+    computeLibrarySourceErrors(source);
+    assertNoErrors(source);
+    verify([source]);
+  }
+
   void test_abstractSuperMemberReference_superHasNoSuchMethod() {
     Source source = addSource('''
 abstract class A {
   int m();
   noSuchMethod(_) => 42;
 }
 
 class B extends A {
   int m() => super.m();
 }
@@ skipping 3662 matching lines @@
     Source source = addSource(r'''
 class A {}
 class B extends A {
   B() : super() {}
 }''');
     computeLibrarySourceErrors(source);
     assertNoErrors(source);
     verify([source]);
   }
 
-  void test_nativeFunctionBodyInNonSDKCode_function() {
-    Source source = addSource(r'''
-import 'dart-ext:x';
-int m(a) native 'string';''');
-    computeLibrarySourceErrors(source);
-    assertNoErrors(source);
-    // Cannot verify the AST because the import's URI cannot be resolved.
-  }
-
   void test_nativeConstConstructor() {
     Source source = addSource(r'''
 import 'dart-ext:x';
 class Foo {
   const Foo() native 'Foo_Foo';
   const factory Foo.foo() native 'Foo_Foo_foo';
 }''');
     computeLibrarySourceErrors(source);
     assertNoErrors(source);
     // Cannot verify the AST because the import's URI cannot be resolved.
+  }
+
+  void test_nativeFunctionBodyInNonSDKCode_function() {
+    Source source = addSource(r'''
+import 'dart-ext:x';
+int m(a) native 'string';''');
+    computeLibrarySourceErrors(source);
+    assertNoErrors(source);
+    // Cannot verify the AST because the import's URI cannot be resolved.
   }
 
   void test_newWithAbstractClass_factory() {
     Source source = addSource(r'''
 abstract class A {
   factory A() { return new B(); }
 }
 class B implements A {
   B() {}
 }
@@ skipping 2489 matching lines @@
     reset();
   }
 
   void _check_wrongNumberOfParametersForOperator1(String name) {
     _check_wrongNumberOfParametersForOperator(name, "a");
   }
 
   CompilationUnit _getResolvedLibraryUnit(Source source) =>
       analysisContext.getResolvedCompilationUnit2(source, source);
 }