Make RefactoringStatus a collection of generated RefactoringProblems.

pkg/analysis_server/lib/src/services/refactoring/rename_unit_member.dart

 // Copyright (c) 2014, 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 services.src.refactoring.rename_unit_member;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/services/correction/change.dart';
 import 'package:analysis_server/src/services/correction/status.dart';
@@ skipping 161 matching lines @@
           visitChildren(refClass, (shadow) {
             if (hasDisplayName(shadow, newName)) {
               String message =
                   format(
                       "Reference to renamed {0} will be shadowed by {1} '{2}'.",
                       getElementKindName(element),
                       getElementKindName(shadow),
                       getElementQualifiedName(shadow));
               result.addError(
                   message,
-                  new RefactoringStatusContext.forElement(shadow));
+                  createLocation_forElement(shadow));
             }
           });
         }
       }
     });
   }
 
   /**
    * Validates if [element] renamed to [newName] will conflict with another
    * top-level [Element] in the same library.
    */
   void _validateWillConflict() {
     LibraryElement library = element.getAncestor((e) => e is LibraryElement);
     visitLibraryTopLevelElements(library, (element) {
       if (hasDisplayName(element, newName)) {
         String message =
             format(
                 "Library already declares {0} with name '{1}'.",
                 getElementKindName(element),
                 newName);
         result.addError(
             message,
-            new RefactoringStatusContext.forElement(element));
+            createLocation_forElement(element));
       }
     });
   }
 
   /**
    * Validates if renamed [element] will shadow any [Element] named [newName].
    */
   Future _validateWillShadow() {
     return searchEngine.searchMemberDeclarations(newName).then((declarations) {
       return Future.forEach(declarations, (SearchMatch declaration) {
@@ skipping 20 matching lines @@
             String message =
                 format(
                     forRename ?
                         "Renamed {0} will shadow {1} '{2}'." :
                         "Created {0} will shadow {1} '{2}'.",
                     getElementKindName(element),
                     getElementKindName(member),
                     getElementQualifiedName(member));
             result.addError(
                 message,
-                new RefactoringStatusContext.forMatch(memberReference));
+                createLocation_forMatch(memberReference));
           }
         });
       });
     });
   }
 }