Merge CoreTypes and CoreClasses into CommonElements.

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 '../compiler.dart' show Compiler;
 import '../core_types.dart' show CommonElements;
 import '../dart_types.dart' show InterfaceType;
@@ skipping 561 matching lines @@
         new BackendImpact(globalClasses: [helpers.closureClass]);
   }
 
   BackendImpact _mapClass;
 
   BackendImpact get mapClass {
     return _mapClass ??= new BackendImpact(
         // The backend will use a literal list to initialize the entries
         // of the map.
         globalClasses: [
-          helpers.coreClasses.listClass,
+          helpers.commonElements.listClass,
           helpers.mapLiteralClass
         ]);
   }
 
   BackendImpact _boundClosureClass;
 
   BackendImpact get boundClosureClass {
     return _boundClosureClass ??=
         new BackendImpact(globalClasses: [helpers.boundClosureClass]);
   }
@@ skipping 73 matching lines @@
 
   BackendImpact get assertUnreachable {
     return _assertUnreachable ??=
         new BackendImpact(globalUses: [helpers.assertUnreachableMethod]);
   }
 
   BackendImpact _runtimeTypeSupport;
 
   BackendImpact get runtimeTypeSupport {
     return _runtimeTypeSupport ??= new BackendImpact(
-        globalClasses: [helpers.coreClasses.listClass],
+        globalClasses: [helpers.commonElements.listClass],
         globalUses: [helpers.setRuntimeTypeInfo, helpers.getRuntimeTypeInfo],
         otherImpacts: [getRuntimeTypeArgument, computeSignature]);
   }
 
   BackendImpact _deferredLoading;
 
   BackendImpact get deferredLoading {
     return _deferredLoading ??=
         new BackendImpact(globalUses: [helpers.checkDeferredIsLoaded],
             // Also register the types of the arguments passed to this method.
-            globalClasses: [helpers.coreClasses.stringClass]);
+            globalClasses: [helpers.commonElements.stringClass]);
   }
 
   BackendImpact _noSuchMethodSupport;
 
   BackendImpact get noSuchMethodSupport {
     return _noSuchMethodSupport ??= new BackendImpact(
         staticUses: [helpers.createInvocationMirror],
         dynamicUses: [Selectors.noSuchMethod_]);
   }
 
@@ skipping 32 matching lines @@
 
   BackendImpact _staticClosure;
 
   /// Backend impact for performing closurization of a top-level or static
   /// function.
   BackendImpact get staticClosure {
     return _staticClosure ??=
         new BackendImpact(globalClasses: [helpers.closureClass]);
   }
 }