Remove references to Engine classes from protocol.dart

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/protocol.dart' show Location, SourceChange;
+import 'package:analysis_server/src/protocol_server.dart' show
+    newLocation_fromElement, newLocation_fromMatch;
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/correction/util.dart';
 import 'package:analysis_server/src/services/refactoring/naming_conventions.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analysis_server/src/services/refactoring/rename.dart';
 import 'package:analysis_server/src/services/search/element_visitors.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/java_core.dart';
 
@@ skipping 173 matching lines @@
         ClassElement refClass =
             refElement.getAncestor((e) => e is ClassElement);
         if (refClass != null) {
           visitChildren(refClass, (shadow) {
             if (hasDisplayName(shadow, name)) {
               String message = format(
                   "Reference to renamed {0} will be shadowed by {1} '{2}'.",
                   getElementKindName(element),
                   getElementKindName(shadow),
                   getElementQualifiedName(shadow));
-              result.addError(message, new Location.fromElement(shadow));
+              result.addError(message, newLocation_fromElement(shadow));
             }
           });
         }
       }
     });
   }
 
   /**
    * Validates if [element] renamed to [name] will conflict with another
    * top-level [Element] in the same library.
    */
   void _validateWillConflict() {
     visitLibraryTopLevelElements(library, (element) {
       if (hasDisplayName(element, name)) {
         String message = format(
             "Library already declares {0} with name '{1}'.",
             getElementKindName(element),
             name);
-        result.addError(message, new Location.fromElement(element));
+        result.addError(message, newLocation_fromElement(element));
       }
     });
   }
 
   /**
    * Validates if renamed [element] will shadow any [Element] named [name].
    */
   Future _validateWillShadow() {
     return searchEngine.searchMemberDeclarations(name).then((declarations) {
       return Future.forEach(declarations, (SearchMatch declaration) {
@@ skipping 17 matching lines @@
               continue;
             }
             // OK, reference will be shadowed be the element being renamed
             String message = format(
                 isRename ?
                     "Renamed {0} will shadow {1} '{2}'." :
                     "Created {0} will shadow {1} '{2}'.",
                 elementKind.displayName,
                 getElementKindName(member),
                 getElementQualifiedName(member));
-            result.addError(message, new Location.fromMatch(memberReference));
+            result.addError(message, newLocation_fromMatch(memberReference));
           }
         });
       });
     });
   }
 }