Fixes leak of native File objects.

runtime/bin/file_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"
 
 namespace dart {
 namespace bin {
 
+
+void FUNCTION_NAME(File_GetPointer)(Dart_NativeArguments args) {
+  Dart_ThrowException(DartUtils::NewInternalError(
+        "File is not supported on this platform"));
+}
+
+
+void FUNCTION_NAME(File_SetPointer)(Dart_NativeArguments args) {
+  Dart_ThrowException(DartUtils::NewInternalError(
+        "File is not supported on this platform"));
+}
+
+
 void FUNCTION_NAME(File_Open)(Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "File is not supported on this platform"));
 }
 
 
 void FUNCTION_NAME(File_Exists)(Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "File is not supported on this platform"));
 }
 
 
 void FUNCTION_NAME(File_Close)(Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "File is not supported on this platform"));
 }
-
-
-void FUNCTION_NAME(File_GetFD)(Dart_NativeArguments args) {
-  Dart_ThrowException(DartUtils::NewInternalError(
-        "File is not supported on this platform"));
-}
 
 
 void FUNCTION_NAME(File_ReadByte)(Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "File is not supported on this platform"));
 }
 
 
 void FUNCTION_NAME(File_WriteByte)(Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
@@ skipping 147 matching lines @@
 
 void FUNCTION_NAME(File_AreIdentical)(Dart_NativeArguments args) {
   Dart_ThrowException(DartUtils::NewInternalError(
         "File is not supported on this platform"));
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // !defined(DART_IO_DISABLED)