More strong mode changes to analysis_server

pkg/analysis_server/lib/src/services/refactoring/inline_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.inline_method;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol_server.dart' hide Element;
 import 'package:analysis_server/src/services/correction/source_range.dart';
@@ skipping 262 matching lines @@
     // done
     return new Future.value(result);
   }
 
   @override
   Future<RefactoringStatus> checkInitialConditions() async {
     RefactoringStatus result = new RefactoringStatus();
     // prepare method information
     result.addStatus(_prepareMethod());
     if (result.hasFatalError) {
-      return new Future.value(result);
+      return new Future<RefactoringStatus>.value(result);
     }
     // maybe operator
     if (_methodElement.isOperator) {
       result = new RefactoringStatus.fatal('Cannot inline operator.');
-      return new Future.value(result);
+      return new Future<RefactoringStatus>.value(result);
     }
     // analyze method body
     result.addStatus(_prepareMethodParts());
     // process references
     List<SearchMatch> references =
         await searchEngine.searchReferences(_methodElement);
     _referenceProcessors.clear();
     for (SearchMatch reference in references) {
       _ReferenceProcessor processor = new _ReferenceProcessor(this, reference);
       _referenceProcessors.add(processor);
@@ skipping 526 matching lines @@
   }
 
   void _addVariable(SimpleIdentifier node) {
     VariableElement variableElement = getLocalVariableElement(node);
     if (variableElement != null) {
       SourceRange nodeRange = rangeNode(node);
       result.addVariable(variableElement, nodeRange);
     }
   }
 }