Wrap runtime.js in a function.

src/bootstrapper.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/code-stubs.h"
@@ skipping 1546 matching lines @@
   Handle<Object> var##_native =                                             \
       Object::GetProperty(handle(native_context()->builtins()), var##_name) \
           .ToHandleChecked();                                               \
   native_context()->set_##var(Type::cast(*var##_native));
 
 
 void Genesis::InstallNativeFunctions() {
   HandleScope scope(isolate());
   INSTALL_NATIVE(JSFunction, "$createDate", create_date_fun);
 
-  INSTALL_NATIVE(JSFunction, "ToNumber", to_number_fun);
-  INSTALL_NATIVE(JSFunction, "ToString", to_string_fun);
+  INSTALL_NATIVE(JSFunction, "$toNumber", to_number_fun);
+  INSTALL_NATIVE(JSFunction, "$toString", to_string_fun);
   INSTALL_NATIVE(JSFunction, "$toDetailString", to_detail_string_fun);
-  INSTALL_NATIVE(JSFunction, "ToObject", to_object_fun);
-  INSTALL_NATIVE(JSFunction, "ToInteger", to_integer_fun);
-  INSTALL_NATIVE(JSFunction, "ToUint32", to_uint32_fun);
-  INSTALL_NATIVE(JSFunction, "ToInt32", to_int32_fun);
-  INSTALL_NATIVE(JSFunction, "ToLength", to_length_fun);
+  INSTALL_NATIVE(JSFunction, "$toObject", to_object_fun);
+  INSTALL_NATIVE(JSFunction, "$toInteger", to_integer_fun);
+  INSTALL_NATIVE(JSFunction, "$toUint32", to_uint32_fun);
+  INSTALL_NATIVE(JSFunction, "$toInt32", to_int32_fun);
+  INSTALL_NATIVE(JSFunction, "$toLength", to_length_fun);
 
   INSTALL_NATIVE(JSFunction, "$globalEval", global_eval_fun);
   INSTALL_NATIVE(JSFunction, "$getStackTraceLine", get_stack_trace_line_fun);
   INSTALL_NATIVE(JSFunction, "$toCompletePropertyDescriptor",
                  to_complete_property_descriptor);
 
   INSTALL_NATIVE(Symbol, "$promiseStatus", promise_status);
   INSTALL_NATIVE(JSFunction, "$promiseCreate", promise_create);
   INSTALL_NATIVE(JSFunction, "$promiseResolve", promise_resolve);
   INSTALL_NATIVE(JSFunction, "$promiseReject", promise_reject);
@@ skipping 1378 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 } }  // namespace v8::internal