Fix a number of issues with the process handling

runtime/bin/platform_win.cc

 // Copyright (c) 2011, 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/platform.h"
 
 
+bool Platform::Initialize() {
+  // Nothing to do on Windows.
+  return true;
+}
+
+
 int Platform::NumberOfProcessors() {
   SYSTEM_INFO info;
   GetSystemInfo(&info);
   return info.dwNumberOfProcessors;
 }
 
 
 const char* Platform::OperatingSystem() {
   return "windows";
 }
@@ skipping 20 matching lines @@
   // null termination.
   if (message_size > 2 &&
       error[message_size - 2] == '\r' &&
       error[message_size - 1] == '\n') {
     error[message_size - 2] = '\0';
   } else {
     error[kBufferSize - 1] = '\0';
   }
   return error;
 }