Add CoreClasses

pkg/compiler/lib/src/common/backend_api.dart

 // Copyright (c) 2012, 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.backend_api;
 
 import 'dart:async' show Future;
 
 import '../common.dart';
 import '../compiler.dart' show
@@ skipping 212 matching lines @@
 
   /// Returns whether or not `noSuchMethod` support has been enabled.
   bool get enabledNoSuchMethod => false;
 
   /// Call this method to enable support for isolates.
   void enableIsolateSupport(Enqueuer enqueuer) {}
 
   void registerConstSymbol(String name) {}
 
   bool isNullImplementation(ClassElement cls) {
-    return cls == compiler.nullClass;
+    return cls == compiler.coreClasses.nullClass;
   }
 
-  ClassElement get intImplementation => compiler.intClass;
-  ClassElement get doubleImplementation => compiler.doubleClass;
-  ClassElement get numImplementation => compiler.numClass;
-  ClassElement get stringImplementation => compiler.stringClass;
-  ClassElement get listImplementation => compiler.listClass;
-  ClassElement get growableListImplementation => compiler.listClass;
-  ClassElement get fixedListImplementation => compiler.listClass;
-  ClassElement get constListImplementation => compiler.listClass;
-  ClassElement get mapImplementation => compiler.mapClass;
-  ClassElement get constMapImplementation => compiler.mapClass;
-  ClassElement get functionImplementation => compiler.functionClass;
-  ClassElement get typeImplementation => compiler.typeClass;
-  ClassElement get boolImplementation => compiler.boolClass;
-  ClassElement get nullImplementation => compiler.nullClass;
-  ClassElement get uint32Implementation => compiler.intClass;
-  ClassElement get uint31Implementation => compiler.intClass;
-  ClassElement get positiveIntImplementation => compiler.intClass;
+  ClassElement get intImplementation => compiler.coreClasses.intClass;
+  ClassElement get doubleImplementation => compiler.coreClasses.doubleClass;
+  ClassElement get numImplementation => compiler.coreClasses.numClass;
+  ClassElement get stringImplementation => compiler.coreClasses.stringClass;
+  ClassElement get listImplementation => compiler.coreClasses.listClass;
+  ClassElement get growableListImplementation => compiler.coreClasses.listClass;
+  ClassElement get fixedListImplementation => compiler.coreClasses.listClass;
+  ClassElement get constListImplementation => compiler.coreClasses.listClass;
+  ClassElement get mapImplementation => compiler.coreClasses.mapClass;
+  ClassElement get constMapImplementation => compiler.coreClasses.mapClass;
+  ClassElement get functionImplementation => compiler.coreClasses.functionClass;
+  ClassElement get typeImplementation => compiler.coreClasses.typeClass;
+  ClassElement get boolImplementation => compiler.coreClasses.boolClass;
+  ClassElement get nullImplementation => compiler.coreClasses.nullClass;
+  ClassElement get uint32Implementation => compiler.coreClasses.intClass;
+  ClassElement get uint31Implementation => compiler.coreClasses.intClass;
+  ClassElement get positiveIntImplementation => compiler.coreClasses.intClass;
 
-  ClassElement defaultSuperclass(ClassElement element) => compiler.objectClass;
+  ClassElement defaultSuperclass(ClassElement element) {
+    return compiler.coreClasses.objectClass;
+  }
 
   bool isInterceptorClass(ClassElement element) => false;
 
   /// Returns `true` if [element] is a foreign element, that is, that the
   /// backend has specialized handling for the element.
   bool isForeign(Element element) => false;
 
   /// Returns `true` if [element] is a native element, that is, that the
   /// corresponding entity already exists in the target language.
   bool isNative(Element element) => false;
@@ skipping 152 matching lines @@
   /// Returns the constant expression of [node], or `null` if [node] is not
   /// a constant expression.
   ConstantExpression getConstant(Node node);
 
   /// Registers [type] as instantiated.
   void registerInstantiatedType(InterfaceType type);
 
   /// Resolves [typeName] to a type in the context of [node].
   DartType resolveTypeFromString(Node node, String typeName);
 }