Elide hole checks on KeyedLoads of holey double arrays.

src/bootstrapper.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 464 matching lines @@
     object_function_map->set_constructor(*object_fun);
 
     native_context()->set_object_function(*object_fun);
 
     // Allocate a new prototype for the object function.
     Handle<JSObject> prototype = factory->NewJSObject(
         isolate->object_function(),
         TENURED);
 
     native_context()->set_initial_object_prototype(*prototype);
+    // For boostrapping set the array prototype to be the same as the object
+    // prototype, otherwise the missing initial_array_prototype will cause
+    // assertions during startup.
+    native_context()->set_initial_array_prototype(*prototype);
     SetPrototype(object_fun, prototype);
   }
 
   // Allocate the empty function as the prototype for function ECMAScript
   // 262 15.3.4.
   Handle<String> empty_string =
       factory->InternalizeOneByteString(STATIC_ASCII_VECTOR("Empty"));
   Handle<JSFunction> empty_function =
       factory->NewFunctionWithoutPrototype(empty_string, CLASSIC_MODE);
 
@@ skipping 1879 matching lines @@
     Handle<FunctionTemplateInfo> proxy_constructor(
         FunctionTemplateInfo::cast(proxy_data->constructor()));
     if (!proxy_constructor->prototype_template()->IsUndefined()) {
       Handle<ObjectTemplateInfo> inner_data(
           ObjectTemplateInfo::cast(proxy_constructor->prototype_template()));
       if (!ConfigureApiObject(inner_global, inner_data)) return false;
     }
   }
 
   SetObjectPrototype(global_proxy, inner_global);
+
+  native_context()->set_initial_array_prototype(
+      JSArray::cast(native_context()->array_function()->prototype()));
+
   return true;
 }
 
 
 bool Genesis::ConfigureApiObject(Handle<JSObject> object,
     Handle<ObjectTemplateInfo> object_template) {
   ASSERT(!object_template.is_null());
   ASSERT(object->IsInstanceOf(
       FunctionTemplateInfo::cast(object_template->constructor())));
 
@@ skipping 224 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal