Fix the local variable lookup in the locals handler.

pkg/compiler/lib/src/js_model/elements.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.js_model.elements;
 
 import '../common/names.dart' show Names;
 import '../elements/entities.dart';
 import '../elements/names.dart';
 import '../elements/types.dart';
@@ skipping 529 matching lines @@
 
   @override
   bool get isField => true;
 
   String get _kind => 'field';
 }
 
 class JClosureCallMethod extends JMethod {
   JClosureCallMethod(int memberIndex, KernelClosureClass containingClass,
       ParameterStructure parameterStructure, AsyncMarker asyncMarker)
-      : super(memberIndex, containingClass.library, containingClass, Names.call,
-            parameterStructure, asyncMarker,
-            isStatic: false, isExternal: false, isAbstract: false);
+      : super(
+            memberIndex,
+            containingClass.closureClassEntity.library,
+            containingClass.closureClassEntity,
+            Names.call,
+            parameterStructure,
+            asyncMarker,
+            isStatic: false,
+            isExternal: false,
+            isAbstract: false);
 
   String get _kind => 'closure_call';
 }
 
 class JTypeVariable implements TypeVariableEntity, IndexedTypeVariable {
   final int typeVariableIndex;
   final Entity typeDeclaration;
   final String name;
   final int index;
 
   JTypeVariable(
       this.typeVariableIndex, this.typeDeclaration, this.name, this.index);
 
   String toString() =>
       '${jsElementPrefix}type_variable(${typeDeclaration.name}.$name)';
 }