Eliminate extended mode, and other modes clean-up

src/execution.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 147 matching lines @@
   *pending_exception = false;
 
   if (!callable->IsJSFunction()) {
     callable = TryGetFunctionDelegate(isolate, callable, pending_exception);
     if (*pending_exception) return callable;
   }
   Handle<JSFunction> func = Handle<JSFunction>::cast(callable);
 
   // In sloppy mode, convert receiver.
   if (convert_receiver && !receiver->IsJSReceiver() &&
-      !func->shared()->native() && func->shared()->is_sloppy_mode()) {
+      !func->shared()->native() &&
+      func->shared()->strict_mode() == SLOPPY) {
     if (receiver->IsUndefined() || receiver->IsNull()) {
       Object* global = func->context()->global_object()->global_receiver();
       // Under some circumstances, 'global' can be the JSBuiltinsObject
       // In that case, don't rewrite.  (FWIW, the same holds for
       // GetIsolate()->global_object()->global_receiver().)
       if (!global->IsJSBuiltinsObject()) {
         receiver = Handle<Object>(global, func->GetIsolate());
       }
     } else {
       receiver = ToObject(isolate, receiver, pending_exception);
@@ skipping 869 matching lines @@
     ASSERT(isolate->concurrent_recompilation_enabled());
     stack_guard->Continue(INSTALL_CODE);
     isolate->optimizing_compiler_thread()->InstallOptimizedFunctions();
   }
   isolate->runtime_profiler()->OptimizeNow();
   return isolate->heap()->undefined_value();
 }
 
 
 } }  // namespace v8::internal