Find native classes with mixins in NativeClassFinder

pkg/compiler/lib/src/common_elements.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.
 
 // TODO(sigmund): rename and move to common/elements.dart
 library dart2js.type_system;
 
 import 'common/names.dart' show Identifiers, Uris;
 import 'js_backend/constant_system_javascript.dart';
 import 'elements/types.dart';
@@ skipping 1179 matching lines @@
   /// Calls [f] for each class member declared or inherited in [cls] together
   /// with the class that declared the member.
   ///
   /// TODO(johnniwinther): This should not include static members of
   /// superclasses.
   void forEachClassMember(
       ClassEntity cls, void f(ClassEntity declarer, MemberEntity member));
 
   /// Returns the superclass of [cls].
   ///
-  /// Unnamed mixin applications are included, for instance for these classes
+  /// If [skipUnnamedMixinApplications] is `true`, unnamed mixin applications
+  /// are excluded, for instance for these classes
   ///
   ///     class S {}
   ///     class M {}
   ///     class C extends S with M {}
   ///
   /// the result of `getSuperClass(C)` is the unnamed mixin application
-  /// typically named `S+M` and `getSuperClass(S+M)` is `S`.
-  ClassEntity getSuperClass(ClassEntity cls);
+  /// typically named `S+M` and `getSuperClass(S+M)` is `S`, whereas
+  /// the result of `getSuperClass(C, skipUnnamedMixinApplications: false)` is
+  /// `S`.
+  ClassEntity getSuperClass(ClassEntity cls,
+      {bool skipUnnamedMixinApplications: false});
 
   void forEachSupertype(ClassEntity cls, void f(InterfaceType supertype));
 
   /// Calls [f] for each class that is mixed into [cls] or one of its
   /// superclasses.
   void forEachMixin(ClassEntity cls, void f(ClassEntity mixin));
 
   /// Create the instantiation of [cls] with the given [typeArguments].
   InterfaceType createInterfaceType(
       ClassEntity cls, List<DartType> typeArguments);
@@ skipping 34 matching lines @@
   DartType getUnaliasedType(DartType type);
 
   /// Returns the [CallStructure] corresponding to calling [entity] with all
   /// arguments, both required and optional.
   CallStructure getCallStructure(FunctionEntity entity);
 
   /// Returns `true` if [member] a the synthetic getter `loadLibrary` injected
   /// on deferred libraries.
   bool isDeferredLoadLibraryGetter(MemberEntity member);
 }