Fix for issue 1566: added flushing after writing to stdout.

src/d8.cc

 // Copyright 2011 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 169 matching lines @@
       }
       return true;
     }
   }
 }
 
 
 Handle<Value> Shell::Print(const Arguments& args) {
   Handle<Value> val = Write(args);
   printf("\n");
+  fflush(stdout);
   return val;
 }
 
 
 Handle<Value> Shell::Write(const Arguments& args) {
   for (int i = 0; i < args.Length(); i++) {
     HandleScope handle_scope;
     if (i != 0) {
       printf(" ");
     }
@@ skipping 1080 matching lines @@
 }
 
 }  // namespace v8
 
 
 #ifndef GOOGLE3
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }
 #endif