Refactoring to prepare for kernel based jump targets

pkg/compiler/lib/src/ssa/types.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.
 
 import '../common_elements.dart' show CommonElements;
 import '../elements/elements.dart';
 import '../elements/entities.dart';
 import '../native/native.dart' as native;
 import '../types/types.dart';
 import '../universe/selector.dart' show Selector;
 import '../world.dart' show ClosedWorld;
 
 class TypeMaskFactory {
   static TypeMask inferredReturnTypeForElement(
       MethodElement element, GlobalTypeInferenceResults results) {
     return results.resultOfMember(element).returnType ??
         results.closedWorld.commonMasks.dynamicType;
   }
 
   static TypeMask inferredTypeForMember(
       MemberEntity element, GlobalTypeInferenceResults results) {
-    // TODO(johnniwinther): Support inferred types for member entities.
+    // TODO(redemption): Support inferred types for member entities.
     if (element is! MemberElement) {
       return results.closedWorld.commonMasks.dynamicType;
     }
     return results.resultOfMember(element).type ??
         results.closedWorld.commonMasks.dynamicType;
   }
 
   static TypeMask inferredTypeForParameter(
       ParameterElement element, GlobalTypeInferenceResults results) {
     return results.resultOfParameter(element).type ??
@@ skipping 28 matching lines @@
       return new TypeMask.nonNullSubtype(type.element, closedWorld);
     }
 
     TypeMask result = typesReturned
         .map(fromNativeType)
         .reduce((t1, t2) => t1.union(t2, closedWorld));
     assert(!result.isEmpty);
     return result;
   }
 }