Fix strong mode errors in dart:io.

runtime/bin/directory_unsupported.cc

 // Copyright (c) 2016, 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.
 
 #if defined(DART_IO_DISABLED)
 
 #include "bin/builtin.h"
 #include "bin/dartutils.h"
 #include "include/dart_api.h"
 
@@ skipping 41 matching lines @@
         "Directory is not supported on this platform"));
 }
 
 
 void FUNCTION_NAME(Directory_Rename)(Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "Directory is not supported on this platform"));
 }
 
 
-void FUNCTION_NAME(Directory_List)(Dart_NativeArguments args) {
+void FUNCTION_NAME(Directory_FillWithDirectoryListing)(
+    Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "Directory is not supported on this platform"));
 }
 
 
 void FUNCTION_NAME(Directory_GetAsyncDirectoryListerPointer)(
     Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "Directory is not supported on this platform"));
 }
 
 
 void FUNCTION_NAME(Directory_SetAsyncDirectoryListerPointer)(
     Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "Directory is not supported on this platform"));
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(DART_IO_DISABLED)