revert 16717 for breaking everything

src/platform-win32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 854 matching lines @@
 
 
 void OS::Sleep(int milliseconds) {
   ::Sleep(milliseconds);
 }
 
 
 void OS::Abort() {
   if (IsDebuggerPresent() || FLAG_break_on_abort) {
     DebugBreak();
+  } else {
+    // Make the MSVCRT do a silent abort.
+    raise(SIGABRT);
   }
-  V8_IMMEDIATE_CRASH();
 }
 
 
 void OS::DebugBreak() {
 #ifdef _MSC_VER
   // To avoid Visual Studio runtime support the following code can be used
   // instead
   // __asm { int 3 }
   __debugbreak();
 #else
@@ skipping 556 matching lines @@
   ASSERT(result);
 }
 
 
 
 void Thread::YieldCPU() {
   Sleep(0);
 }
 
 } }  // namespace v8::internal