Make Runtime_Abort print to stderr instead of stdout.

src/isolate.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 817 matching lines @@
       frames_seen++;
     }
     it.Advance();
   }
 
   stack_trace->set_length(Smi::FromInt(frames_seen));
   return stack_trace;
 }
 
 
-void Isolate::PrintStack() {
+void Isolate::PrintStack(FILE* out) {
   if (stack_trace_nesting_level_ == 0) {
     stack_trace_nesting_level_++;
 
     StringAllocator* allocator;
     if (preallocated_message_space_ == NULL) {
       allocator = new HeapStringAllocator();
     } else {
       allocator = preallocated_message_space_;
     }
 
     StringStream::ClearMentionedObjectCache();
     StringStream accumulator(allocator);
     incomplete_message_ = &accumulator;
     PrintStack(&accumulator);
-    accumulator.OutputToStdOut();
+    accumulator.OutputToFile(out);
     InitializeLoggingAndCounters();
     accumulator.Log();
     incomplete_message_ = NULL;
     stack_trace_nesting_level_ = 0;
     if (preallocated_message_space_ == NULL) {
       // Remove the HeapStringAllocator created above.
       delete allocator;
     }
   } else if (stack_trace_nesting_level_ == 1) {
     stack_trace_nesting_level_++;
     OS::PrintError(
       "\n\nAttempt to print stack while printing stack (double fault)\n");
     OS::PrintError(
       "If you are lucky you may find a partial stack dump on stdout.\n\n");
-    incomplete_message_->OutputToStdOut();
+    incomplete_message_->OutputToFile(out);
   }
 }
 
 
 static void PrintFrames(Isolate* isolate,
                         StringStream* accumulator,
                         StackFrame::PrintMode mode) {
   StackFrameIterator it(isolate);
   for (int i = 0; !it.done(); it.Advance()) {
     it.frame()->Print(accumulator, mode, i++);
@@ skipping 1610 matching lines @@
 
 #ifdef DEBUG
 #define ISOLATE_FIELD_OFFSET(type, name, ignored)                       \
 const intptr_t Isolate::name##_debug_offset_ = OFFSET_OF(Isolate, name##_);
 ISOLATE_INIT_LIST(ISOLATE_FIELD_OFFSET)
 ISOLATE_INIT_ARRAY_LIST(ISOLATE_FIELD_OFFSET)
 #undef ISOLATE_FIELD_OFFSET
 #endif
 
 } }  // namespace v8::internal