More strong mode changes to analysis_server

pkg/analysis_server/lib/src/services/refactoring/extract_method.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.extract_method;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
 import 'package:analysis_server/src/services/correction/name_suggestion.dart';
@@ skipping 37 matching lines @@
  * from tokens, so ignores all the comments and spaces.
  */
 String _getNormalizedSource(String src) {
   List<Token> selectionTokens = TokenUtils.getTokens(src);
   return StringUtils.join(selectionTokens, _TOKEN_SEPARATOR);
 }
 
 /**
  * Returns the [Map] which maps [map] values to their keys.
  */
-Map<String, String> _inverseMap(Map map) {
-  Map result = {};
-  map.forEach((key, value) {
+Map<String, String> _inverseMap(Map<String, String> map) {
+  Map<String, String> result = <String, String>{};
+  map.forEach((String key, String value) {
     result[value] = key;
   });
   return result;
 }
 
 /**
  * [ExtractMethodRefactoring] implementation.
  */
 class ExtractMethodRefactoringImpl extends RefactoringImpl
     implements ExtractMethodRefactoring {
@@ skipping 342 matching lines @@
     if (parent is CompilationUnit) {
       LibraryElement libraryElement = parent.element.library;
       return validateCreateFunction(searchEngine, libraryElement, name);
     }
     // method of class
     if (parent is ClassDeclaration) {
       ClassElement classElement = parent.element;
       return validateCreateMethod(searchEngine, classElement, name);
     }
     // OK
-    return new Future.value(result);
+    return new Future<RefactoringStatus>.value(result);
   }
 
   /**
    * Checks if [selectionRange] selects [Expression] which can be extracted, and
    * location of this [DartExpression] in AST allows extracting.
    */
   RefactoringStatus _checkSelection() {
     _ExtractMethodAnalyzer selectionAnalyzer =
         new _ExtractMethodAnalyzer(unit, selectionRange);
     unit.accept(selectionAnalyzer);
@@ skipping 806 matching lines @@
       return false;
     }
     for (int i = 0; i < parameterTypes.length; i++) {
       if (other.parameterTypes[i] != parameterTypes[i]) {
         return false;
       }
     }
     return true;
   }
 }