Handle resolvedAst for forwarding constructors and callType on unnamed mixin applications.

pkg/compiler/lib/src/resolution/class_hierarchy.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.resolution.class_hierarchy;
 
 import '../common.dart';
 import '../common/resolution.dart' show Feature;
 import '../compiler.dart' show Compiler;
 import '../core_types.dart' show CoreClasses, CoreTypes;
@@ skipping 539 matching lines @@
     } else {
       assert(cls == compiler.coreClasses.objectClass);
       cls.allSupertypesAndSelf =
           new OrderedTypeSet.singleton(cls.computeType(resolution));
     }
   }
 
   isBlackListed(DartType type) {
     LibraryElement lib = element.library;
     return !identical(lib, compiler.coreLibrary) &&
-        !compiler.backend.isBackendLibrary(lib) &&
+        !resolution.target.isTargetSpecificLibrary(lib) &&
         (type.isDynamic ||
             type == coreTypes.boolType ||
             type == coreTypes.numType ||
             type == coreTypes.intType ||
             type == coreTypes.doubleType ||
             type == coreTypes.stringType ||
             type == coreTypes.nullType);
   }
 }
 
@@ skipping 77 matching lines @@
     Identifier selector = node.selector.asIdentifier();
     var e = prefixElement.lookupLocalMember(selector.source);
     if (e == null || !e.impliesType) {
       reporter.reportErrorMessage(node.selector,
           MessageKind.CANNOT_RESOLVE_TYPE, {'typeName': node.selector});
       return;
     }
     loadSupertype(e, node);
   }
 }