Introduce extended mode.

src/accessors.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 657 matching lines @@
 
 //
 // Accessors::FunctionCaller
 //
 
 
 static MaybeObject* CheckNonStrictCallerOrThrow(
     Isolate* isolate,
     JSFunction* caller) {
   DisableAssertNoAllocation enable_allocation;
-  if (caller->shared()->strict_mode()) {
+  if (!caller->shared()->is_classic_mode()) {
     return isolate->Throw(
         *isolate->factory()->NewTypeError("strict_caller",
                                           HandleVector<Object>(NULL, 0)));
   }
   return caller;
 }
 
 
 class FrameFunctionIterator {
  public:
@@ skipping 114 matching lines @@
 }
 
 
 const AccessorDescriptor Accessors::ObjectPrototype = {
   ObjectGetPrototype,
   ObjectSetPrototype,
   0
 };
 
 } }  // namespace v8::internal