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pkg/compiler/lib/src/kernel/element_map_impl.dart

 // Copyright (c) 2017, 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 dart2js.kernel.element_map;
 
 import 'package:kernel/ast.dart' as ir;
 import 'package:kernel/clone.dart';
 import 'package:kernel/type_algebra.dart';
 
@@ skipping 1092 matching lines @@
   InterfaceType getRawType(ClassEntity cls) {
     return elementMap._getRawType(cls);
   }
 
   @override
   bool isGenericClass(ClassEntity cls) {
     return getThisType(cls).typeArguments.isNotEmpty;
   }
 
   @override
+  bool isUnnamedMixinApplication(KClass cls) {
+    return elementMap._isUnnamedMixinApplication(cls);
+  }
+
+  @override
   DartType getTypeVariableBound(TypeVariableEntity typeVariable) {
     throw new UnimplementedError(
         'KernelElementEnvironment.getTypeVariableBound');
   }
 
   @override
   InterfaceType createInterfaceType(
       ClassEntity cls, List<DartType> typeArguments) {
     return new InterfaceType(cls, typeArguments);
   }
@@ skipping 415 matching lines @@
     return node.isExternal &&
         !elementMap.isForeignLibrary(node.enclosingLibrary);
   }
 
   @override
   bool isJsInteropMember(MemberEntity element) {
     // TODO(johnniwinther): Compute this.
     return false;
   }
 }