Implement verification of context separation.

src/objects-printer.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 797 matching lines @@
   PrintF(out, "\n - length = %d", length());
   PrintF(out, "\n - has_only_simple_this_property_assignments = %d",
          has_only_simple_this_property_assignments());
   PrintF(out, "\n - this_property_assignments = ");
   this_property_assignments()->ShortPrint(out);
   PrintF(out, "\n");
 }
 
 
 void JSGlobalProxy::JSGlobalProxyPrint(FILE* out) {
-  PrintF(out, "global_proxy");
+  PrintF(out, "global_proxy ");
   JSObjectPrint(out);
   PrintF(out, "context : ");
   context()->ShortPrint(out);
   PrintF(out, "\n");
 }
 
 
 void JSGlobalObject::JSGlobalObjectPrint(FILE* out) {
   PrintF(out, "global ");
   JSObjectPrint(out);
@@ skipping 254 matching lines @@
     }
   }
   PrintF(out, "\n");
 }
 
 
 #endif  // OBJECT_PRINT
 
 
 } }  // namespace v8::internal