More strong mode changes to analysis_server

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

Index: pkg/analysis_server/lib/src/services/refactoring/extract_method.dart
diff --git a/pkg/analysis_server/lib/src/services/refactoring/extract_method.dart b/pkg/analysis_server/lib/src/services/refactoring/extract_method.dart
index 8e059bc38db8689604da80f24b81aa95d6ab8492..106684adbcf58a28594ba207321512999ccaac40 100644
--- a/pkg/analysis_server/lib/src/services/refactoring/extract_method.dart
+++ b/pkg/analysis_server/lib/src/services/refactoring/extract_method.dart
@@ -55,9 +55,9 @@ String _getNormalizedSource(String src) {
 /**
  * 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;
@@ -420,7 +420,7 @@ class ExtractMethodRefactoringImpl extends RefactoringImpl
       return validateCreateMethod(searchEngine, classElement, name);
     }
     // OK
-    return new Future.value(result);
+    return new Future<RefactoringStatus>.value(result);
   }
 
   /**