Handle symbol literals in closed_world2_test

pkg/compiler/lib/src/js_backend/backend_impact.dart

 // Copyright (c) 2015, 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_helpers.impact;
 
 import '../common/names.dart';
 import '../common_elements.dart' show CommonElements, ElementEnvironment;
 import '../elements/types.dart' show InterfaceType;
 import '../elements/entities.dart';
@@ skipping 184 matching lines @@
     return _asCheck ??=
         new BackendImpact(staticUses: [_commonElements.throwRuntimeError]);
   }
 
   BackendImpact _throwNoSuchMethod;
 
   BackendImpact get throwNoSuchMethod {
     return _throwNoSuchMethod ??= new BackendImpact(
         instantiatedClasses: _options.useKernel
             ? [
-                _commonElements.symbolClass,
+                _commonElements.symbolImplementationClass,
               ]
             : [],
         staticUses: _options.useKernel
             ? [
                 _commonElements.genericNoSuchMethod,
                 _commonElements.unresolvedConstructorError,
                 _commonElements.unresolvedStaticMethodError,
                 _commonElements.unresolvedStaticGetterError,
                 _commonElements.unresolvedStaticSetterError,
                 _commonElements.unresolvedTopLevelMethodError,
                 _commonElements.unresolvedTopLevelGetterError,
                 _commonElements.unresolvedTopLevelSetterError,
-                _commonElements.symbolConstructor,
+                _commonElements.symbolConstructorTarget,
               ]
             : [
                 _commonElements.throwNoSuchMethod,
               ],
         otherImpacts: [
           // Also register the types of the arguments passed to this method.
           _needsList(
               'Needed to encode the arguments for throw NoSuchMethodError.'),
           _needsString(
               'Needed to encode the name for throw NoSuchMethodError.'),
@@ skipping 99 matching lines @@
 
   BackendImpact get symbolConstructor {
     return _symbolConstructor ??= new BackendImpact(
         staticUses: [_commonElements.symbolValidatedConstructor]);
   }
 
   BackendImpact _constSymbol;
 
   BackendImpact get constSymbol {
     return _constSymbol ??= new BackendImpact(
-        instantiatedClasses: [_commonElements.symbolClass],
-        staticUses: [_commonElements.symbolConstructor]);
+        instantiatedClasses: [_commonElements.symbolImplementationClass],
+        staticUses: [_commonElements.symbolConstructorTarget]);
   }
 
   /// Helper for registering that `int` is needed.
   BackendImpact _needsInt(String reason) {
     // TODO(johnniwinther): Register [reason] for use in dump-info.
     return intValues;
   }
 
   /// Helper for registering that `List` is needed.
   BackendImpact _needsList(String reason) {
@@ skipping 439 matching lines @@
   /// Backend impact for type variables through mirrors.
   BackendImpact get typeVariableMirror {
     return _typeVariableMirror ??= new BackendImpact(staticUses: [
       _commonElements.typeVariableConstructor,
       _commonElements.createRuntimeType
     ], instantiatedClasses: [
       _commonElements.typeVariableClass
     ]);
   }
 }