Make the temporary OSError allocation method private.

runtime/bin/dartutils.cc

 // Copyright (c) 2012, 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.
 
 #include "bin/dartutils.h"
 
 #include "bin/file.h"
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/globals.h"
@@ skipping 273 matching lines @@
   return NewDartOSError(&os_error);
 }
 
 
 Dart_Handle DartUtils::NewDartOSError(OSError* os_error) {
   // Create a Dart OSError object with the information retrieved from the OS.
   Dart_Handle url = Dart_NewString("dart:io");
   if (Dart_IsError(url)) return url;
   Dart_Handle lib = Dart_LookupLibrary(url);
   if (Dart_IsError(lib)) return lib;
-  Dart_Handle cls = Dart_NewString("IOUtils");
-  if (Dart_IsError(cls)) return cls;
-  Dart_Handle method = Dart_NewString("makeOSError");
-  if (Dart_IsError(method)) return method;
+  Dart_Handle function_name = Dart_NewString("_makeOSError");
+  if (Dart_IsError(function_name)) return function_name;
   Dart_Handle args[2];
   args[0] = Dart_NewString(os_error->message());
   if (Dart_IsError(args[0])) return args[0];
   args[1] = Dart_NewInteger(os_error->code());
   if (Dart_IsError(args[1])) return args[1];
-  Dart_Handle err = Dart_InvokeStatic(lib, cls, method, 2, args);
+  Dart_Handle err = Dart_Invoke(lib, function_name, 2, args);
   return err;
 }
 
 
 // Statically allocated Dart_CObject instances for immutable
 // objects. As these will be used by different threads the use of
 // these depends on the fact that the marking internally in the
 // Dart_CObject structure is not marking simple value objects.
 Dart_CObject CObject::api_null_ = { Dart_CObject::kNull , { 0 } };
 Dart_CObject CObject::api_true_ = { Dart_CObject::kBool , { true } };
@@ skipping 119 matching lines @@
 
 CObject* CObject::NewOSError(OSError* os_error) {
   CObject* error_message =
       new CObjectString(CObject::NewString(os_error->message()));
   CObjectArray* result = new CObjectArray(CObject::NewArray(3));
   result->SetAt(0, new CObjectInt32(CObject::NewInt32(kOSError)));
   result->SetAt(1, new CObjectInt32(CObject::NewInt32(os_error->code())));
   result->SetAt(2, error_message);
   return result;
 }