Fix a bug in a corner case of direct eval detection.

src/runtime.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 8226 matching lines @@
     Handle<Object> name = isolate->factory()->eval_symbol();
     Handle<Object> reference_error =
         isolate->factory()->NewReferenceError("not_defined",
                                               HandleVector(&name, 1));
     return MakePair(isolate->Throw(*reference_error), NULL);
   }
 
   if (!context->IsGlobalContext()) {
     // 'eval' is not bound in the global context. Just call the function
     // with the given arguments. This is not necessarily the global eval.
-    if (receiver->IsContext()) {
-      context = Handle<Context>::cast(receiver);
-      receiver = Handle<Object>(context->get(index), isolate);
-    } else if (receiver->IsJSContextExtensionObject()) {
+    if (receiver->IsContext() || receiver->IsJSContextExtensionObject()) {
       receiver = Handle<JSObject>(
           isolate->context()->global()->global_receiver(), isolate);
     }
     return MakePair(*callee, *receiver);
   }
 
   // 'eval' is bound in the global context, but it may have been overwritten.
   // Compare it to the builtin 'GlobalEval' function to make sure.
   if (*callee != isolate->global_context()->global_eval_fun() ||
       !args[1]->IsString()) {
@@ skipping 3724 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal